Menggunakan standar DICOMweb

Halaman ini menjelaskan cara menggunakan implementasi DICOMweb oleh Cloud Healthcare API untuk menyimpan dan mengelola data image DICOM.

Untuk mengetahui informasi selengkapnya tentang cara Cloud Healthcare API menerapkan berbagai layanan REST DICOMweb, lihat Pernyataan kesesuaian DICOM.

Implementasi DICOMweb di Cloud Healthcare API hanya mendukung REST, bukan RPC.

Menginstal DICOMweb CLI Cloud Healthcare API

Beberapa contoh di halaman ini menggunakan CLI DICOMweb Cloud Healthcare API, sebuah alat open source yang menyederhanakan cara berinteraksi dengan server DICOMweb. Alat ini menyediakan fungsi untuk menyimpan, mengambil, menghapus, dan menelusuri file DICOM. Halaman GitHub untuk alat ini berisi informasi lebih lanjut seperti persyaratan penginstalan mendetail dan cara menyesuaikan alat tersebut.

Alat ini berjalan menggunakan Python. Untuk mengetahui informasi tentang cara menyiapkan Python di Google Cloud, lihat Menyiapkan lingkungan pengembangan Python.

Setelah menyiapkan Python, Anda dapat menginstal alat tersebut menggunakan Pip:

pip install https://github.com/GoogleCloudPlatform/healthcare-api-dicomweb-cli/archive/v1.0.zip

Untuk menggunakan alat ini, Anda harus melakukan autentikasi ke server Google Cloud. Anda dapat melakukannya menggunakan salah satu metode berikut:

• Menetapkan variabel lingkungan GOOGLE_APPLICATION_CREDENTIALS
• Mengautentikasi melalui Google Cloud CLI menggunakan gcloud auth application-default login

Setelah mengonfigurasi salah satu opsi ini, alat ini akan otomatis mendeteksi kredensial Anda.

Menyimpan data DICOM

Sebelum dapat menyimpan data DICOM, Anda harus membuat penyimpanan DICOM.

Cloud Healthcare API menerapkan layanan web RESTful transaksi Store saat menyimpan data DICOM. Untuk mengetahui informasi selengkapnya, lihat Transaksi toko dalam pernyataan kesesuaian DICOM Cloud Healthcare API.

Anda dapat menyimpan data DICOM menggunakan metode berikut. Dalam kedua kasus tersebut, Anda harus meneruskan header application/dicom Accept dalam permintaan Anda.

• Menyimpan instance DICOM (biasanya file .dcm).

• Menyimpan metadata JSON DICOM dengan file JPEG.

  Semua permintaan untuk menyimpan metadata JSON DICOM dengan file JPEG adalah pesan multibagian, yang ditetapkan oleh bagian multipart/related dari Content-Type-nya. Bagian multipart/related dari Content-Type menunjukkan bahwa permintaan terdiri dari beberapa bagian data yang digabungkan setelah permintaan selesai. Setiap set data ini harus dipisahkan menggunakan batas, seperti yang ditentukan oleh bagian boundary dari Content-Type.

Contoh berikut menunjukkan cara menyimpan instance di penyimpanan DICOM. Untuk mengetahui informasi selengkapnya, lihat projects.locations.datasets.dicomStores.storeInstances.

Menyimpan instance DICOM

Contoh berikut menunjukkan cara menyimpan instance DICOM. Untuk informasi selengkapnya, lihat projects.locations.datasets.dicomStores.storeInstances.

REST

Sebelum menggunakan salah satu data permintaan, lakukan penggantian berikut:

• PROJECT_ID: ID project Google Cloud Anda
• LOCATION: lokasi set data
• DATASET_ID: set data induk penyimpanan DICOM
• DICOM_STORE_ID: ID penyimpanan DICOM
• DICOM_INSTANCE_FILE: jalur ke file instance DICOM di mesin lokal Anda yang diakhiri dengan akhiran .dcm

Untuk mengirim permintaan Anda, pilih salah satu opsi berikut:

curl

Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login, atau menggunakan Cloud Shell, yang secara otomatis membuat Anda login ke CLI gcloud. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

Jalankan perintah berikut:

curl -X POST \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "Content-Type: application/dicom" \
     --data-binary @DICOM_INSTANCE_FILE \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies"

PowerShell

Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

Jalankan perintah berikut:

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method POST `
    -Headers $headers `
    -InFile DICOM_INSTANCE_FILE `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies" | Select-Object -Expand Content

Output-nya adalah respons XML berikut:

Respons

<NativeDicomModel>
  <DicomAttribute tag="00081190" vr="UR" keyword="RetrieveURL">
    <Value number="1">https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID</Value>
  </DicomAttribute>
  <DicomAttribute tag="00081199" vr="SQ" keyword="ReferencedSOPSequence">
    <Item number="1">
      <DicomAttribute tag="00081150" vr="UI" keyword="ReferencedSOPClassUID">
        <Value number="1">SOP_CLASS_UID</Value>
      </DicomAttribute>
      <DicomAttribute tag="00081155" vr="UI" keyword="ReferencedSOPInstanceUID">
        <Value number="1">SOP_INSTANCE_UID</Value>
      </DicomAttribute>
      <DicomAttribute tag="00081190" vr="UR" keyword="RetrieveURL">
        <Value number="1">https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID</Value>
      </DicomAttribute>
    </Item>
  </DicomAttribute>
</NativeDicomModel>

Go

import (
	"bytes"
	"context"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// dicomWebStoreInstance stores the given dicomFile with the dicomWebPath.
func dicomWebStoreInstance(w io.Writer, projectID, location, datasetID, dicomStoreID, dicomWebPath, dicomFile string) error {
	ctx := context.Background()

	dicomData, err := ioutil.ReadFile(dicomFile)
	if err != nil {
		return fmt.Errorf("ReadFile: %w", err)
	}

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	storesService := healthcareService.Projects.Locations.Datasets.DicomStores

	parent := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/dicomStores/%s", projectID, location, datasetID, dicomStoreID)

	call := storesService.StoreInstances(parent, dicomWebPath, bytes.NewReader(dicomData))
	call.Header().Set("Content-Type", "application/dicom")
	resp, err := call.Do()
	if err != nil {
		return fmt.Errorf("StoreInstances: %w", err)
	}
	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("could not read response: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("StoreInstances: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}
	fmt.Fprintf(w, "%s", respBytes)
	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Collections;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.client.methods.RequestBuilder;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.impl.client.HttpClients;

public class DicomWebStoreInstance {
  private static final String DICOM_NAME = "projects/%s/locations/%s/datasets/%s/dicomStores/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void dicomWebStoreInstance(String dicomStoreName, String filePath)
      throws IOException, URISyntaxException {
    // String dicomStoreName =
    //    String.format(
    //        DICOM_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-dicom-id");
    // String filePath = "path/to/file.dcm";

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    HttpClient httpClient = HttpClients.createDefault();
    String uri = String.format("%sv1/%s/dicomWeb/studies", client.getRootUrl(), dicomStoreName);
    URIBuilder uriBuilder = new URIBuilder(uri).setParameter("access_token", getAccessToken());
    // Load the data from file representing the study.
    File f = new File(filePath);
    byte[] dicomBytes = Files.readAllBytes(Paths.get(filePath));
    ByteArrayEntity requestEntity = new ByteArrayEntity(dicomBytes);

    HttpUriRequest request =
        RequestBuilder.post(uriBuilder.build())
            .setEntity(requestEntity)
            .addHeader("Content-Type", "application/dicom")
            .build();

    // Execute the request and process the results.
    HttpResponse response = httpClient.execute(request);
    HttpEntity responseEntity = response.getEntity();
    if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
      System.err.print(
          String.format(
              "Exception storing DICOM instance: %s\n", response.getStatusLine().toString()));
      responseEntity.writeTo(System.err);
      throw new RuntimeException();
    }
    System.out.println("DICOM instance stored: ");
    responseEntity.writeTo(System.out);
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }

  private static String getAccessToken() throws IOException {
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    return credential.refreshAccessToken().getTokenValue();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});
const fs = require('fs');

const dicomWebStoreInstance = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const dicomStoreId = 'my-dicom-store';
  // const dcmFile = 'file.dcm';
  const parent = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/dicomStores/${dicomStoreId}`;
  const dicomWebPath = 'studies';
  // Use a stream because other types of reads overwrite the client's HTTP
  // headers and cause storeInstances to fail.
  const binaryData = fs.createReadStream(dcmFile);
  const request = {
    parent,
    dicomWebPath,
    requestBody: binaryData,
  };

  const instance =
    await healthcare.projects.locations.datasets.dicomStores.storeInstances(
      request,
      {
        headers: {
          'Content-Type': 'application/dicom',
          Accept: 'application/dicom+json',
        },
      }
    );
  console.log('Stored DICOM instance:\n', JSON.stringify(instance.data));
};

dicomWebStoreInstance();

Python

def dicomweb_store_instance(project_id, location, dataset_id, dicom_store_id, dcm_file):
    """Handles the POST requests specified in the DICOMweb standard.

    See https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/dicom
    before running the sample."""

    # Imports the google.auth.transport.requests transport
    from google.auth.transport import requests

    # Imports a module to allow authentication using Application Default Credentials (ADC)
    import google.auth

    # Gets credentials from the environment. google.auth.default() returns credentials and the
    # associated project ID, but in this sample, the project ID is passed in manually.
    credentials, _ = google.auth.default()

    scoped_credentials = credentials.with_scopes(
        ["https://www.googleapis.com/auth/cloud-platform"]
    )
    # Creates a requests Session object with the credentials.
    session = requests.AuthorizedSession(scoped_credentials)

    # URL to the Cloud Healthcare API endpoint and version
    base_url = "https://healthcare.googleapis.com/v1"

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'  # replace with your GCP project ID
    # location = 'us-central1'  # replace with the parent dataset's location
    # dataset_id = 'my-dataset'  # replace with the parent dataset's ID
    # dicom_store_id = 'my-dicom-store' # replace with the DICOM store ID
    # dcm_file = 'dicom000_0001.dcm'  # replace with a DICOM file
    url = f"{base_url}/projects/{project_id}/locations/{location}"

    dicomweb_path = "{}/datasets/{}/dicomStores/{}/dicomWeb/studies".format(
        url, dataset_id, dicom_store_id
    )

    with open(dcm_file, "rb") as dcm:
        dcm_content = dcm.read()

    # Sets required "application/dicom" header on the request
    headers = {"Content-Type": "application/dicom"}

    response = session.post(dicomweb_path, data=dcm_content, headers=headers)
    response.raise_for_status()
    print("Stored DICOM instance:")
    print(response.text)
    return response

Menentukan kelas penyimpanan untuk menyimpan instance DICOM (Pratinjau)

Pratinjau

Bagian ini menjelaskan fitur Pratinjau yang dapat berubah dan mungkin memiliki dukungan terbatas. Perubahan pada produk dan fitur pra-GA mungkin tidak kompatibel dengan versi pra-GA lainnya. Untuk mengetahui informasi selengkapnya, lihat Persyaratan Penawaran Pra-GA untuk Cloud Healthcare API dan deskripsi tahap peluncuran.

Secara default, metode projects.locations.datasets.dicomStores.storeInstances menyimpan instance DICOM di penyimpanan DICOM dengan class penyimpanan standar. Anda dapat menetapkan kelas penyimpanan saat menyimpan objek DICOM dari mesin lokal Anda. Untuk mengetahui informasi selengkapnya, lihat Mengubah kelas penyimpanan DICOM.

Contoh berikut menunjukkan cara menentukan kelas penyimpanan saat Anda menyimpan objek DICOM dari mesin lokal.

curl

Gunakan metode projects.locations.datasets.dicomStores.storeInstances. Sebelum menggunakan data permintaan apa pun, buat pergantian berikut:

• PROJECT_ID: ID project Google Cloud Anda
• LOCATION: lokasi set data
• DATASET_ID: set data induk penyimpanan DICOM
• DICOM_STORE_ID: ID penyimpanan DICOM
• DICOM_INSTANCE_FILE: jalur ke file instance DICOM di mesin lokal Anda yang diakhiri dengan akhiran .dcm
• STORAGE_CLASS: kelas penyimpanan untuk instance DICOM di penyimpanan DICOM dari STANDARD,NEARLINE, COLDLINE, dan ARCHIVE

curl -X POST \
    -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
    -H "Content-Type: application/dicom" \
    -H "Storage-Class: STORAGE_CLASS"
    --data-binary @DICOM_INSTANCE_FILE \
    "https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies"

Jika permintaan berhasil, server menampilkan respons:

<NativeDicomModel>
  <DicomAttribute tag="00081190" vr="UR" keyword="RetrieveURL">
    <Value number="1">https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID</Value>
  </DicomAttribute>
  <DicomAttribute tag="00081199" vr="SQ" keyword="ReferencedSOPSequence">
    <Item number="1">
      <DicomAttribute tag="00081150" vr="UI" keyword="ReferencedSOPClassUID">
        <Value number="1">SOP_CLASS_UID</Value>
      </DicomAttribute>
      <DicomAttribute tag="00081155" vr="UI" keyword="ReferencedSOPInstanceUID">
        <Value number="1">SOP_INSTANCE_UID</Value>
      </DicomAttribute>
      <DicomAttribute tag="00081190" vr="UR" keyword="RetrieveURL">
        <Value number="1">https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID</Value>
      </DicomAttribute>
    </Item>
  </DicomAttribute>
</NativeDicomModel>

PowerShell

Gunakan metode projects.locations.datasets.dicomStores.storeInstances.

Sebelum menggunakan data permintaan apa pun, buat pergantian berikut:

• PROJECT_ID: ID project Google Cloud Anda
• LOCATION: lokasi set data
• DATASET_ID: set data induk penyimpanan DICOM
• DICOM_STORE_ID: ID penyimpanan DICOM
• DICOM_INSTANCE_FILE: jalur ke file instance DICOM di mesin lokal Anda yang diakhiri dengan akhiran .dcm
• STORAGE_CLASS: kelas penyimpanan untuk instance DICOM di penyimpanan DICOM dari STANDARD,NEARLINE, COLDLINE, dan ARCHIVE

$cred = gcloud auth application-default print-access-token
$headers = @{ "Authorization" = "Bearer $cred"; "Storage-Class" = "STORAGE_CLASS" }

Invoke-WebRequest `
  -Method Post `
  -Headers $headers `
  -ContentType: "application/dicom" `
  -InFile DCM_FILE.dcm `
  -Uri "https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies" | Select-Object -Expand Content

Jika permintaan berhasil, server akan menampilkan respons dalam format JSON:

<NativeDicomModel>
  <DicomAttribute tag="00081190" vr="UR" keyword="RetrieveURL">
    <Value number="1">https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID</Value>
  </DicomAttribute>
  <DicomAttribute tag="00081199" vr="SQ" keyword="ReferencedSOPSequence">
    <Item number="1">
      <DicomAttribute tag="00081150" vr="UI" keyword="ReferencedSOPClassUID">
        <Value number="1">SOP_CLASS_UID</Value>
      </DicomAttribute>
      <DicomAttribute tag="00081155" vr="UI" keyword="ReferencedSOPInstanceUID">
        <Value number="1">SOP_INSTANCE_UID</Value>
      </DicomAttribute>
      <DicomAttribute tag="00081190" vr="UR" keyword="RetrieveURL">
        <Value number="1">https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID</Value>
      </DicomAttribute>
    </Item>
  </DicomAttribute>
</NativeDicomModel>

Membuat instance DICOM dari metadata JSON dan gambar JPEG

Cloud Healthcare API dapat membuat instance DICOM menggunakan file metadata JSON dan file JPEG. Buat instance DICOM dari metadata JSON dan file JPEG jika Anda memilih untuk tidak melakukan penguraian dan serialisasi DICOM sendiri, karena Cloud Healthcare API dapat melakukan tugas ini untuk Anda.

Permintaan HTTP yang menyimpan data ini harus menyertakan hal berikut dalam Content-Type permintaan:

• Jenis media multipart/related
• Jenis MIME application/dicom+json
• Pemisah boundary

Contoh berikut menunjukkan cara menyimpan file metadata JSON dengan file JPEG.

curl

Contoh berikut mengasumsikan bahwa Anda sudah memiliki gambar JPEG.

Menyimpan file metadata JSON dengan gambar JPEG terdiri dari tiga langkah:

1. Buat file yang berisi representasi JSON dari instance DICOM yang berisi gambar JPEG. File template disediakan di bawah ini.

2. Buat tiga file pembatas:

   • opening.file: Berisi batas pembuka untuk file metadata JSON
   • middle.file: Berisi batas tengah untuk gambar JPEG
   • closing.file: Berisi batas penutupan untuk semua bagian pesan

3. Buat file bernama multipart-request.file dengan menyertakan file metadata JSON dan gambar JPEG dalam file batas.

Perhatikan nilai berikut yang disediakan secara default dalam file template metadata JSON:

• UID Sintaksis Transfer (1.2.840.10008.1.2.4.50) menetapkan Sintaksis Transfer sebagai JPEG Baseline. Sebagian besar gambar JPEG dalam format JPEG Baseline. Nilai Penafsiran Fotometrik (YBR_FULL_422) menandakan bahwa gambar berwarna, bukan hitam putih.
• BulkDataUri adalah deskripsi arbitrer untuk gambar, dan dalam template ditetapkan ke jpeg-image. Nilai ini digunakan saat membuat batas gambar.

Nilai untuk SOP_CLASS_UID, SOP_INSTANCE_UID, STUDY_INSTANCE_UID, dan SERIES_INSTANCE_UID dapat berupa nilai numerik apa pun yang dipisahkan oleh titik. DICOM menggunakan hierarki ID untuk instance, pasien, studi, dan rangkaian, jadi pilih kumpulan ID yang logis untuk variabel ini.

Ganti SOP Class UID dengan nilai dari tabel Class SOP Standar yang menentukan jenis gambar yang disimpan.

Catatan: Bergantung pada Class SOP yang digunakan, Anda mungkin perlu menambahkan lebih banyak tag ke file metadata JSON. Misalnya, jika Anda menggunakan Gambar Resonansi Magnetis (Gambar MR), lihat Tabel A.4-1. Modul IOD MR Image untuk menentukan tag yang diperlukan.

Ganti Rows dengan tinggi vertikal gambar JPEG dalam piksel. Ganti Columns dengan lebar horizontal gambar JPEG dalam piksel.

Selesaikan langkah berikut:

1. Simpan teks berikut ke file bernama instance.json, dan ganti variabel jika ditentukan.

   [{
    "00020010":{"vr":"UI","Value":["1.2.840.10008.1.2.4.50"]},
    "00080005":{"vr":"CS","Value":["ISO_IR 192"]},
    "00080016":{"vr":"UI","Value":["SOP_CLASS_UID"]},
    "00080018":{"vr":"UI","Value":["SOP_INSTANCE_UID"]},
    "0020000D":{"vr":"UI","Value":["STUDY_INSTANCE_UID"]},
    "0020000E":{"vr":"UI","Value":["SERIES_INSTANCE_UID"]},
    "00280002":{"vr":"US","Value":[3]},
    "00280004":{"vr":"CS","Value":["YBR_FULL_422"]},
    "00280006":{"vr":"US","Value":[0]},
    "00280008":{"vr":"IS","Value":[1]},
    "00280010":{"vr":"US","Value":[Rows]},
    "00280011":{"vr":"US","Value":[Columns]},
    "00280100":{"vr":"US","Value":[8]},
    "00280101":{"vr":"US","Value":[8]},
    "00280102":{"vr":"US","Value":[7]},
    "00280103":{"vr":"US","Value":[0]},
    "7FE00010":{"vr":"OB","BulkDataURI":"jpeg-image"}
   }]
   

2. Untuk membuat batas pembukaan (untuk metadata JSON), batas tengah (untuk gambar JPEG), dan batas penutup, jalankan perintah berikut:

   echo -ne "--DICOMwebBoundary\r\nContent-Type: application/dicom+json\r\n\r\n" > opening.file
   echo -ne "\r\n--DICOMwebBoundary\r\nContent-Location: jpeg-image\r\nContent-Type: image/jpeg; transfer-syntax=1.2.840.10008.1.2.4.50\r\n\r\n" > middle.file
   echo -ne "\r\n--DICOMwebBoundary--" > closing.file
   

3. Gabungkan gambar JPEG dalam batas tengah dan penutup. File output, yang Anda kirim ke Cloud Healthcare API, disebut multipart-request.file:

   cat opening.file instance.json middle.file image.jpg closing.file > multipart-request.file
   

4. Buat permintaan POST dan tentukan informasi berikut:

   • Nama set data induk
   • Nama penyimpanan DICOM
   • File multipart-request.file
   • Token akses

Contoh berikut menunjukkan permintaan POST yang menggunakan curl.

curl -X POST \
    -H "Content-Type: multipart/related; type=\"application/dicom+json\"; boundary=DICOMwebBoundary" \
    -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
    https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies \
    --data-binary @multipart-request.file

Jika permintaan berhasil, server akan menampilkan respons dalam format XML:

<NativeDicomModel>
  <DicomAttribute tag="00081190" vr="UR" keyword="RetrieveURL">
    <Value number="1">https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID</Value>
  </DicomAttribute>
  <DicomAttribute tag="00081199" vr="SQ" keyword="ReferencedSOPSequence">
    <Item number="1">
      <DicomAttribute tag="00081150" vr="UI" keyword="ReferencedSOPClassUID">
        <Value number="1">SOP_CLASS_UID</Value>
      </DicomAttribute>
      <DicomAttribute tag="00081155" vr="UI" keyword="ReferencedSOPInstanceUID">
        <Value number="1">SOP_INSTANCE_UID</Value>
      </DicomAttribute>
      <DicomAttribute tag="00081190" vr="UR" keyword="RetrieveURL">
        <Value number="1">https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID</Value>
      </DicomAttribute>
    </Item>
  </DicomAttribute>
</NativeDicomModel>

Menggunakan DICOMweb CLI

Contoh berikut menunjukkan cara menggunakan DICOMweb CLI Cloud Healthcare API untuk menyimpan satu atau beberapa instance DICOM. Ada lebih banyak contoh yang tersedia di repositori GitHub CLI DICOMweb.

Menyimpan satu instance DICOM:

dcmweb \
  https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb \
  store DCM_FILE

Jika permintaan berhasil, server akan menampilkan respons yang mirip dengan contoh berikut:

TIMESTAMP -- DCM_FILE.dcm uploaded as https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID TIMESTAMP -- INSTANCE_UID
TIMESTAMP -- Transferred SIZE in COUNT files

Menyimpan beberapa file secara paralel menggunakan karakter pengganti:

Contoh berikut menunjukkan cara menyimpan beberapa file DICOM secara rekursif secara paralel dari direktori kerja saat ini. Untuk menyimpan file secara paralel, tambahkan flag -m.

dcmweb -m \
  https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb \
  store "./**.dcm"

Jika permintaan berhasil, server akan menampilkan respons yang mirip dengan contoh berikut:

TIMESTAMP -- DCM_FILE_1.dcm uploaded as https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID TIMESTAMP -- INSTANCE_UID
TIMESTAMP -- DCM_FILE_2.dcm uploaded as https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID TIMESTAMP -- INSTANCE_UID
TIMESTAMP -- DCM_FILE_3.dcm uploaded as https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID TIMESTAMP -- INSTANCE_UID
...
TIMESTAMP -- Transferred SIZE in COUNT files

Menelusuri data DICOM

Anda dapat menelusuri studi, serial, instance, dan frame. Contoh berikut menunjukkan penerapan transaksi Penelusuran untuk menelusuri instance di penyimpanan DICOM. Untuk mengetahui informasi selengkapnya, lihat Transaksi penelusuran di pernyataan kesesuaian DICOM Cloud Healthcare API.

Contoh berikut menunjukkan cara menelusuri instance di penyimpanan DICOM. Untuk informasi selengkapnya, lihat projects.locations.datasets.dicomStores.searchForInstances.

REST

Sebelum menggunakan salah satu data permintaan, lakukan penggantian berikut:

• PROJECT_ID: ID project Google Cloud Anda
• LOCATION: lokasi set data
• DATASET_ID: set data induk penyimpanan DICOM
• DICOM_STORE_ID: ID penyimpanan DICOM

Untuk mengirim permintaan Anda, pilih salah satu opsi berikut:

curl

Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login, atau menggunakan Cloud Shell, yang secara otomatis membuat Anda login ke CLI gcloud. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

Jalankan perintah berikut:

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/instances"

PowerShell

Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

Jalankan perintah berikut:

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method GET `
    -Headers $headers `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/instances" | Select-Object -Expand Content

APIs Explorer

Buka halaman referensi metode. Panel APIs Explorer akan terbuka di sisi kanan halaman. Anda bisa berinteraksi dengan alat ini untuk mengirim permintaan. Lengkapi kolom yang wajib diisi, lalu klik Jalankan.

Anda akan melihat respons JSON seperti berikut:

Respons

[
   {
      "00080005":{
         "vr":"CS",
         "Value":[
            "CODE_STRING"
         ]
      },
      "00080016":{
         "vr":"UI",
         "Value":[
            "UNIQUE_IDENTIFIER"
         ]
      },
      "00080018":{
         "vr":"UI",
         "Value":[
            "UNIQUE_IDENTIFIER"
         ]
      },
      "00080020":{
         "vr":"DA",
         "Value":[
            "DATE_TIME"
         ]
      },
      "00080030":{
         "vr":"TM",
         "Value":[
            "TIME"
         ]
      },
      "00080060":{
         "vr":"CS",
         "Value":[
            "CODE_STRING"
         ]
      },
      "0008103E":{
         "vr":"LO",
         "Value":[
            "LONG_STRING"
         ]
      },
      "00100010":{
         "vr":"PN",
         "Value":[
            {
               "Alphabetic":"Anonymized"
            }
         ]
      },
   },
...
]

Go

import (
	"context"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// dicomWebSearchInstances searches instances.
func dicomWebSearchInstances(w io.Writer, projectID, location, datasetID, dicomStoreID string) error {
	// projectID := "my-project"
	// location := "us-central1"
	// datasetID := "my-dataset"
	// dicomStoreID := "my-dicom-store"
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	storesService := healthcareService.Projects.Locations.Datasets.DicomStores

	parent := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/dicomStores/%s", projectID, location, datasetID, dicomStoreID)

	resp, err := storesService.SearchForInstances(parent, "instances").Do()
	if err != nil {
		return fmt.Errorf("SearchForInstances: %w", err)
	}

	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("ioutil.ReadAll: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("SearchForInstances: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}

	respString := string(respBytes)
	fmt.Fprintf(w, "Found instances: %s\n", respString)
	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcare.Projects.Locations.Datasets.DicomStores;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Collections;

public class DicomWebSearchForInstances {
  private static final String DICOM_NAME = "projects/%s/locations/%s/datasets/%s/dicomStores/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void dicomWebSearchForInstances(String dicomStoreName) throws IOException {
    // String dicomStoreName =
    //    String.format(
    //        DICOM_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-dicom-id");

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    // Create request and configure any parameters.
    DicomStores.SearchForInstances request =
        client
            .projects()
            .locations()
            .datasets()
            .dicomStores()
            .searchForInstances(dicomStoreName, "instances");

    // Execute the request and process the results.
    HttpResponse response = request.executeUnparsed();
    System.out.println("Dicom store instances found: \n" + response.toString());
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const dicomWebSearchForInstances = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const dicomStoreId = 'my-dicom-store';
  const parent = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/dicomStores/${dicomStoreId}`;
  const dicomWebPath = 'instances';
  const request = {parent, dicomWebPath};

  const instances =
    await healthcare.projects.locations.datasets.dicomStores.searchForInstances(
      request,
      {
        headers: {Accept: 'application/dicom+json,multipart/related'},
      }
    );
  console.log(`Found ${instances.data.length} instances:`);
  console.log(JSON.stringify(instances.data));
};

dicomWebSearchForInstances();

Python

def dicomweb_search_instance(project_id, location, dataset_id, dicom_store_id):
    """Handles the GET requests specified in DICOMweb standard.

    See https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/dicom
    before running the sample."""

    # Imports the google.auth.transport.requests transport
    from google.auth.transport import requests

    # Imports a module to allow authentication using Application Default Credentials (ADC)
    import google.auth

    # Gets credentials from the environment. google.auth.default() returns credentials and the
    # associated project ID, but in this sample, the project ID is passed in manually.
    credentials, _ = google.auth.default()

    scoped_credentials = credentials.with_scopes(
        ["https://www.googleapis.com/auth/cloud-platform"]
    )
    # Creates a requests Session object with the credentials.
    session = requests.AuthorizedSession(scoped_credentials)

    # URL to the Cloud Healthcare API endpoint and version
    base_url = "https://healthcare.googleapis.com/v1"

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'  # replace with your GCP project ID
    # location = 'us-central1'  # replace with the parent dataset's location
    # dataset_id = 'my-dataset'  # replace with the parent dataset's ID
    # dicom_store_id = 'my-dicom-store' # replace with the DICOM store ID
    url = f"{base_url}/projects/{project_id}/locations/{location}"

    dicomweb_path = "{}/datasets/{}/dicomStores/{}/dicomWeb/instances".format(
        url, dataset_id, dicom_store_id
    )

    # Sets required application/dicom+json; charset=utf-8 header on the request
    headers = {"Content-Type": "application/dicom+json; charset=utf-8"}

    response = session.get(dicomweb_path, headers=headers)
    response.raise_for_status()

    instances = response.json()

    print("Instances:")
    print(json.dumps(instances, indent=2))

    return instances

Telusuri menggunakan tag DICOM

Anda dapat menyaring penelusuran dengan menambahkan tag DICOM ke permintaan dalam bentuk parameter kueri. Misalnya, Anda mungkin ingin mencari studi yang berisi nama pasien.

Seperti contoh sebelumnya, contoh berikut menunjukkan implementasi transaksi Penelusuran untuk menelusuri studi di toko DICOM. Namun, sampel ini menunjukkan cara menelusuri studi dengan nama pasien "Sally Zhang".

Contoh berikut menunjukkan sebagian metadata instance DICOM tempat nama pasien dicantumkan:

...
{
  "vr": "PN",
  "Value": [
    {
      "Alphabetic": "Sally Zhang"
    }
  ]
}
...

Untuk menelusuri studi di penyimpanan DICOM yang berkaitan dengan pasien, tambahkan parameter kueri ke permintaan tempat Anda menelusuri berdasarkan tag DICOM PatientName. Untuk mengetahui daftar parameter penelusuran yang didukung dalam Cloud Healthcare API, lihat dokumentasi Transaksi penelusuran.

REST

Sebelum menggunakan salah satu data permintaan, lakukan penggantian berikut:

• PROJECT_ID: ID project Google Cloud Anda
• LOCATION: lokasi set data
• DATASET_ID: set data induk penyimpanan DICOM
• DICOM_STORE_ID: ID penyimpanan DICOM

Untuk mengirim permintaan Anda, pilih salah satu opsi berikut:

curl

Catatan: Pastikan Anda telah menetapkan variabel lingkungan GOOGLE_APPLICATION_CREDENTIALS ke jalur untuk file kunci pribadi akun layanan Anda.

Catatan:Anda dapat menambahkan pencocokan fuzzy saat menelusuri berdasarkan PatientName dengan menetapkan parameter kueri di bawah ke ?PatientName=Sally%20Zhang&fuzzymatching=true. Pencocokan fuzzy menjalankan tokenisasi dan normalisasi pada nilai PatientName dalam kueri dan nilai yang disimpan. Token ini cocok jika ada token penelusuran yang merupakan awalan dari token yang disimpan. Misalnya, jika PatientName adalah Sally%20Zhang, maka sa, Zh, dan Sally^Zhang akan cocok. Namun, ally tidak cocok.

Jalankan perintah berikut:

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies?PatientName=Sally%20Zhang"

PowerShell

Catatan: Pastikan Anda telah menetapkan variabel lingkungan GOOGLE_APPLICATION_CREDENTIALS ke jalur untuk file kunci pribadi akun layanan Anda.

Catatan:Anda dapat menambahkan pencocokan fuzzy saat menelusuri berdasarkan PatientName dengan menetapkan parameter kueri di bawah ke ?PatientName=Sally%20Zhang&fuzzymatching=true. Pencocokan fuzzy menjalankan tokenisasi dan normalisasi pada nilai PatientName dalam kueri dan nilai yang disimpan. Token ini cocok jika ada token penelusuran yang merupakan awalan dari token yang disimpan. Misalnya, jika PatientName adalah Sally%20Zhang, maka sa, Zh, dan Sally^Zhang akan cocok. Namun, ally tidak cocok.

Jalankan perintah berikut:

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method GET `
    -Headers $headers `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies?PatientName=Sally%20Zhang" | Select-Object -Expand Content

APIs Explorer

Buka halaman referensi metode. Panel APIs Explorer akan terbuka di sisi kanan halaman. Anda bisa berinteraksi dengan alat ini untuk mengirim permintaan. Lengkapi kolom yang wajib diisi, lalu klik Jalankan.

Anda akan melihat respons JSON seperti berikut:

Respons

[
  {
    "00080005": {
      "vr": "CS",
      "Value": [
        "CODE_STRING"
      ]
    },
    "00080020": {
      "vr": "DA",
      "Value": [
        "DATE_TIME"
      ]
    },
    "00080030": {
      "vr": "TM",
      "Value": [
        "TIME"
      ]
    },
    "00080050": {
      "vr": "SH"
    },
    "00080090": {
      "vr": "PN",
      "Value": [
        {
          "Alphabetic": "VALUE"
        }
      ]
    },
    "00100010": {
      "vr": "PN",
      "Value": [
        {
          "Alphabetic": "Sally Zhang"
        }
      ]
    },
    "00100020": {
      "vr": "LO",
      "Value": [
        "VALUE"
      ]
    },
    "00100030": {
      "vr": "DA"
    },
    "00100040": {
      "vr": "CS",
      "Value": [
        "F"
      ]
    },
    "0020000D": {
      "vr": "UI",
      "Value": [
        "STUDY_INSTANCE_UID"
      ]
    },
    "00200010": {
      "vr": "SH"
    }
  }
]

Go

import (
	"context"
	"fmt"
	"io"
	"io/ioutil"

	healthcare "google.golang.org/api/healthcare/v1"
)

// queryParamOpt is a googleapi.Option (https://godoc.org/google.golang.org/api/googleapi#CallOption)
// that adds query parameters to an API call.
type queryParamOpt struct {
	key, value string
}

func (qp queryParamOpt) Get() (string, string) { return qp.key, qp.value }

// dicomWebSearchStudies refines a DICOMweb studies search by appending DICOM tags to the request.
func dicomWebSearchStudies(w io.Writer, projectID, location, datasetID, dicomStoreID, dicomWebPath string) error {
	// projectID := "my-project"
	// location := "us-central1"
	// datasetID := "my-dataset"
	// dicomStoreID := "my-dicom-store"
	// dicomWebPath := "studies"
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	storesService := healthcareService.Projects.Locations.Datasets.DicomStores

	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/dicomStores/%s", projectID, location, datasetID, dicomStoreID)

	call := storesService.SearchForStudies(name, dicomWebPath)
	// Refine your search by appending DICOM tags to the
	// request in the form of query parameters. This sample
	// searches for studies containing a patient's name.
	patientName := queryParamOpt{key: "PatientName", value: "Sally Zhang"}
	resp, err := call.Do(patientName)
	if err != nil {
		return fmt.Errorf("Get: %w", err)
	}

	defer resp.Body.Close()

	respBytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return fmt.Errorf("ioutil.ReadAll: %w", err)
	}

	if resp.StatusCode > 299 {
		return fmt.Errorf("SearchForStudies: status %d %s: %s", resp.StatusCode, resp.Status, respBytes)
	}
	respString := string(respBytes)
	if len(respString) > 0 {
		fmt.Fprintf(w, "Found studies: %s\n", respString)
	} else {
		fmt.Println("No studies found.")
	}

	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcare.Projects.Locations.Datasets.DicomStores;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Collections;

public class DicomWebSearchStudies {
  private static final String DICOM_NAME = "projects/%s/locations/%s/datasets/%s/dicomStores/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void dicomWebSearchStudies(String dicomStoreName) throws IOException {
    // String dicomStoreName =
    //    String.format(
    //        DICOM_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-dicom-id");

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    DicomStores.SearchForStudies request =
        client
            .projects()
            .locations()
            .datasets()
            .dicomStores()
            .searchForStudies(dicomStoreName, "studies")
            // Refine your search by appending DICOM tags to the
            // request in the form of query parameters. This sample
            // searches for studies containing a patient's name.
            .set("PatientName", "Sally Zhang");

    // Execute the request and process the results.
    HttpResponse response = request.executeUnparsed();
    System.out.println("Studies found: \n" + response.toString());
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const dicomWebSearchStudies = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const dicomStoreId = 'my-dicom-store';
  const parent = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/dicomStores/${dicomStoreId}`;
  const dicomWebPath = 'studies';
  const request = {parent, dicomWebPath};

  const studies =
    await healthcare.projects.locations.datasets.dicomStores.searchForStudies(
      request,
      {
        // Refine your search by appending DICOM tags to the
        // request in the form of query parameters. This sample
        // searches for studies containing a patient's name.
        params: {PatientName: 'Sally Zhang'},
        headers: {Accept: 'application/dicom+json'},
      }
    );
  console.log(studies);

  console.log(`Found ${studies.data.length} studies:`);
  console.log(JSON.stringify(studies.data));
};

dicomWebSearchStudies();

Python

def dicomweb_search_studies(project_id, location, dataset_id, dicom_store_id):
    """Handles the GET requests specified in the DICOMweb standard.

    See https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/dicom
    before running the sample."""

    # Imports the google.auth.transport.requests transport
    from google.auth.transport import requests

    # Imports a module to allow authentication using Application Default Credentials (ADC)
    import google.auth

    # Gets credentials from the environment. google.auth.default() returns credentials and the
    # associated project ID, but in this sample, the project ID is passed in manually.
    credentials, _ = google.auth.default()

    scoped_credentials = credentials.with_scopes(
        ["https://www.googleapis.com/auth/cloud-platform"]
    )
    # Creates a requests Session object with the credentials.
    session = requests.AuthorizedSession(scoped_credentials)

    # URL to the Cloud Healthcare API endpoint and version
    base_url = "https://healthcare.googleapis.com/v1"

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'  # replace with your GCP project ID
    # location = 'us-central1'  # replace with the parent dataset's location
    # dataset_id = 'my-dataset'  # replace with the parent dataset's ID
    # dicom_store_id = 'my-dicom-store' # replace with the DICOM store ID
    url = f"{base_url}/projects/{project_id}/locations/{location}"

    dicomweb_path = "{}/datasets/{}/dicomStores/{}/dicomWeb/studies".format(
        url, dataset_id, dicom_store_id
    )

    # Refine your search by appending DICOM tags to the
    # request in the form of query parameters. This sample
    # searches for studies containing a patient's name.
    params = {"PatientName": "Sally Zhang"}

    response = session.get(dicomweb_path, params=params)

    response.raise_for_status()

    print(f"Studies found: response is {response}")

    # Uncomment the following lines to process the response as JSON.
    # patients = response.json()
    # print('Patients found matching query:')
    # print(json.dumps(patients, indent=2))

    # return patients

Menggunakan DICOMweb CLI

Contoh berikut menunjukkan cara menggunakan DICOMweb CLI Cloud Healthcare API untuk menelusuri instance di penyimpanan DICOM. Ada lebih banyak contoh, termasuk cara memfilter penelusuran, yang tersedia di repositori GitHub CLI DICOMweb.

dcmweb \
  https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb \
  search instances

Jika permintaan berhasil, server akan menampilkan respons dalam format JSON:

[
   {
      "00080005":{
         "vr":"CS",
         "Value":[
            "CODE_STRING"
         ]
      },
      "00080016":{
         "vr":"UI",
         "Value":[
            "UNIQUE_IDENTIFIER"
         ]
      },
      "00080018":{
         "vr":"UI",
         "Value":[
            "UNIQUE_IDENTIFIER"
         ]
      },
      "00080020":{
         "vr":"DA",
         "Value":[
            "DATE_TIME"
         ]
      },
      "00080030":{
         "vr":"TM",
         "Value":[
            "TIME"
         ]
      },
      "00080060":{
         "vr":"CS",
         "Value":[
            "CODE_STRING"
         ]
      },
      "0008103E":{
         "vr":"LO",
         "Value":[
            "LONG_STRING"
         ]
      },
      "00100010":{
         "vr":"PN",
         "Value":[
            {
               "Alphabetic":"Anonymized"
            }
         ]
      },
   },

...

]

Mengambil data DICOM

Cloud Healthcare API menerapkan Mengambil transaksi untuk mengambil studi, rangkaian, instance, dan frame di penyimpanan DICOM.

Untuk informasi selengkapnya, lihat Mengambil transaksi di pernyataan kesesuaian DICOM Cloud Healthcare API.

Mengambil studi

Contoh berikut menunjukkan cara mengambil studi. Untuk mengetahui informasi selengkapnya, lihat studi/seri/instance DICOM dalam pernyataan kesesuaian DICOM Cloud Healthcare API.

Saat menentukan file output, gunakan ekstensi seperti .multipart. Kemudian, uraikan file multibagian untuk mendapatkan rangkaian dan instance individu dalam studi.

Untuk informasi selengkapnya, lihat projects.locations.datasets.dicomStores.studies.retrieveStudy.

curl

Untuk mengambil studi, buat permintaan GET dan tentukan informasi berikut:

• Nama set data induk
• Nama penyimpanan DICOM
• ID unik (UID) studi
• File output
• Token akses

Contoh berikut menunjukkan permintaan GET yang menggunakan curl.

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     -H "Accept: multipart/related; type=application/dicom; transfer-syntax=*" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID" \
     --output FILENAME.multipart

Jika permintaan berhasil, file DICOM akan ditulis ke komputer Anda.

PowerShell

Untuk mengambil studi, buat permintaan GET dan tentukan informasi berikut:

• Nama set data induk
• Nama penyimpanan DICOM
• ID unik (UID) studi
• File output
• Token akses

Contoh berikut menunjukkan permintaan GET menggunakan Windows PowerShell.

$cred = gcloud auth application-default print-access-token
$headers = @{ Authorization = "Bearer $cred"; Accept = "multipart/related; type=application/dicom; transfer-syntax=*" }

Invoke-WebRequest `
  -Method Get `
  -Headers $headers `
  -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID" | Select-Object -Expand Content
  -OutFile FILENAME.multipart `

Jika permintaan berhasil, file DICOM akan ditulis ke komputer Anda.

Go

import (
	"context"
	"fmt"
	"io"
	"os"

	healthcare "google.golang.org/api/healthcare/v1"
)

// dicomWebRetrieveStudy retrieves all instances in the given dicomWebPath
// study.
func dicomWebRetrieveStudy(w io.Writer, projectID, location, datasetID, dicomStoreID, dicomWebPath string, outputFile string) error {
	// projectID := "my-project"
	// location := "us-central1"
	// datasetID := "my-dataset"
	// dicomStoreID := "my-dicom-store"
	// dicomWebPath := "studies/1.3.6.1.4.1.11129.5.5.111396399857604"
	// outputFile := "study.multipart"
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	storesService := healthcareService.Projects.Locations.Datasets.DicomStores.Studies

	parent := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/dicomStores/%s", projectID, location, datasetID, dicomStoreID)

	resp, err := storesService.RetrieveStudy(parent, dicomWebPath).Do()
	if err != nil {
		return fmt.Errorf("RetrieveStudy: %w", err)
	}

	defer resp.Body.Close()

	if resp.StatusCode > 299 {
		return fmt.Errorf("RetrieveStudy: status %d %s: %s", resp.StatusCode, resp.Status, resp.Body)
	}

	file, err := os.Create(outputFile)
	if err != nil {
		return fmt.Errorf("os.Create: %w", err)
	}
	defer file.Close()
	if _, err := io.Copy(file, resp.Body); err != nil {
		return fmt.Errorf("io.Copy: %w", err)
	}

	// When specifying the output file, use an extension like ".multipart".
	// Then, parse the downloaded multipart file to get each individual DICOM
	// file.
	fmt.Fprintf(w, "Study retrieved and downloaded to file: %v\n", outputFile)

	return nil
}

Java

import com.google.api.client.http.HttpHeaders;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcare.Projects.Locations.Datasets.DicomStores.Studies;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Collections;

public class DicomWebRetrieveStudy {
  private static final String DICOM_NAME = "projects/%s/locations/%s/datasets/%s/dicomStores/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void dicomWebRetrieveStudy(String dicomStoreName, String studyId)
      throws IOException {
    // String dicomStoreName =
    //    String.format(
    //        DICOM_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-dicom-id");
    // String studyId = "your-study-id";

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    // Create request and configure any parameters.
    Studies.RetrieveStudy request =
        client
            .projects()
            .locations()
            .datasets()
            .dicomStores()
            .studies()
            .retrieveStudy(dicomStoreName, "studies/" + studyId);

    // Execute the request and process the results.
    HttpResponse response = request.executeUnparsed();

    // When specifying the output file, use an extension like ".multipart".
    // Then, parse the downloaded multipart file to get each individual
    // DICOM file.
    String outputPath = "study.multipart";
    OutputStream outputStream = new FileOutputStream(new File(outputPath));
    try {
      response.download(outputStream);
      System.out.println("DICOM study written to file " + outputPath);
    } finally {
      outputStream.close();
    }

    if (!response.isSuccessStatusCode()) {
      System.err.print(
          String.format("Exception retrieving DICOM study: %s\n", response.getStatusMessage()));
      throw new RuntimeException();
    }
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    HttpHeaders headers = new HttpHeaders();
    // The response's default transfer syntax is Little Endian Explicit.
    // As a result, if the file was uploaded using a compressed transfer syntax,
    // the returned object will be decompressed. This can negatively impact performance and lead
    // to errors for transfer syntaxes that the Cloud Healthcare API doesn't support.
    // To avoid these issues, and if the returned object's transfer syntax doesn't matter to
    // your application, use the
    // multipart/related; type="application/dicom"; transfer-syntax=* Accept Header.
    headers.setAccept("multipart/related; type=application/dicom; transfer-syntax=*");
    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});
const fs = require('fs');
const util = require('util');
const writeFile = util.promisify(fs.writeFile);
// When specifying the output file, use an extension like ".multipart."
// Then, parse the downloaded multipart file to get each individual
// DICOM file.
const fileName = 'study_file.multipart';

const dicomWebRetrieveStudy = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const dicomStoreId = 'my-dicom-store';
  // const studyUid = '1.3.6.1.4.1.5062.55.1.2270943358.716200484.1363785608958.61.0';
  const parent = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/dicomStores/${dicomStoreId}`;
  const dicomWebPath = `studies/${studyUid}`;
  const request = {parent, dicomWebPath};

  const study =
    await healthcare.projects.locations.datasets.dicomStores.studies.retrieveStudy(
      request,
      {
        headers: {
          Accept:
            'multipart/related; type=application/dicom; transfer-syntax=*',
        },
        responseType: 'arraybuffer',
      }
    );

  const fileBytes = Buffer.from(study.data);

  await writeFile(fileName, fileBytes);
  console.log(
    `Retrieved study and saved to ${fileName} in current directory`
  );
};

dicomWebRetrieveStudy();

Python

def dicomweb_retrieve_study(
    project_id, location, dataset_id, dicom_store_id, study_uid
):
    """Handles the GET requests specified in the DICOMweb standard.

    See https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/dicom
    before running the sample."""

    # Imports the google.auth.transport.requests transport
    from google.auth.transport import requests

    # Imports a module to allow authentication using Application Default Credentials (ADC)
    import google.auth

    # Gets credentials from the environment. google.auth.default() returns credentials and the
    # associated project ID, but in this sample, the project ID is passed in manually.
    credentials, _ = google.auth.default()

    scoped_credentials = credentials.with_scopes(
        ["https://www.googleapis.com/auth/cloud-platform"]
    )
    # Creates a requests Session object with the credentials.
    session = requests.AuthorizedSession(scoped_credentials)

    # URL to the Cloud Healthcare API endpoint and version
    base_url = "https://healthcare.googleapis.com/v1"

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'  # replace with your GCP project ID
    # location = 'us-central1'  # replace with the parent dataset's location
    # dataset_id = 'my-dataset'  # replace with the parent dataset's ID
    # dicom_store_id = 'my-dicom-store' # replace with the DICOM store ID
    # study_uid = '1.3.6.1.4.1.5062.55.1.227'  # replace with the study UID
    url = f"{base_url}/projects/{project_id}/locations/{location}"

    dicomweb_path = "{}/datasets/{}/dicomStores/{}/dicomWeb/studies/{}".format(
        url, dataset_id, dicom_store_id, study_uid
    )

    # When specifying the output file, use an extension like ".multipart."
    # Then, parse the downloaded multipart file to get each individual
    # DICOM file.
    file_name = "study.multipart"

    response = session.get(dicomweb_path)

    response.raise_for_status()

    with open(file_name, "wb") as f:
        f.write(response.content)
        print(f"Retrieved study and saved to {file_name} in current directory")

    return response

Mengambil instance

Contoh berikut menunjukkan cara mengambil instance. Untuk mengetahui informasi selengkapnya, lihat instance DICOM dalam pernyataan kesesuaian DICOM Cloud Healthcare API.

Jika mengambil instance, Anda dapat menghindari keharusan mengurai batas multibagian dengan menggunakan header HTTP Accept: application/dicom. Menambahkan transfer-syntax=* akan menghindari transcoding dengan menampilkan file dalam format awalnya yang menyimpan file tersebut.

Untuk informasi selengkapnya, lihat projects.locations.datasets.dicomStores.studies.series.instances.retrieveInstance.

curl

Untuk mengambil instance, buat permintaan GET dan tentukan informasi berikut:

• Nama set data induk
• Nama penyimpanan DICOM
• ID unik (UID) studi
• UID rangkaian, UID instance
• Nama file output
• Token akses

Contoh berikut menunjukkan permintaan GET yang menggunakan curl.

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     -H "Accept: application/dicom; transfer-syntax=*" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID" \
     --output FILENAME.dcm

Jika permintaan berhasil, file DICOM akan ditulis ke komputer Anda.

PowerShell

Untuk mengambil instance, buat permintaan GET dan tentukan informasi berikut:

• Nama set data induk
• Nama penyimpanan DICOM
• ID unik (UID) studi
• UID seri
• UID instance
• Nama file output
• Token akses

Contoh berikut menunjukkan permintaan GET menggunakan Windows PowerShell.

$cred = gcloud auth application-default print-access-token
$headers = @{ Authorization = "Bearer $cred"; Accept = "application/dicom; transfer-syntax=*" }

Invoke-RestMethod `
  -Method Get `
  -Headers $headers `
  -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID"
  -OutFile FILENAME.dcm `

Jika permintaan berhasil, file DICOM akan ditulis ke komputer Anda.

Go

import (
	"context"
	"fmt"
	"io"
	"os"

	healthcare "google.golang.org/api/healthcare/v1"
)

// dicomWebRetrieveInstance retrieves a specific instance.
func dicomWebRetrieveInstance(w io.Writer, projectID, location, datasetID, dicomStoreID, dicomWebPath string, outputFile string) error {
	// projectID := "my-project"
	// location := "us-central1"
	// datasetID := "my-dataset"
	// dicomStoreID := "my-dicom-store"
	// dicomWebPath := "studies/1.3.6.1.4.1.11129.5.5.1113639985/series/1.3.6.1.4.1.11129.5.5.1953511724/instances/1.3.6.1.4.1.11129.5.5.9562821369"
	// outputFile := "instance.dcm"
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	storesService := healthcareService.Projects.Locations.Datasets.DicomStores.Studies.Series.Instances

	parent := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/dicomStores/%s", projectID, location, datasetID, dicomStoreID)

	call := storesService.RetrieveInstance(parent, dicomWebPath)
	call.Header().Set("Accept", "application/dicom; transfer-syntax=*")
	resp, err := call.Do()
	if err != nil {
		return fmt.Errorf("RetrieveInstance: %w", err)
	}

	defer resp.Body.Close()

	if resp.StatusCode > 299 {
		return fmt.Errorf("RetrieveInstance: status %d %s: %s", resp.StatusCode, resp.Status, resp.Body)
	}

	file, err := os.Create(outputFile)
	if err != nil {
		return fmt.Errorf("os.Create: %w", err)
	}
	defer file.Close()
	if _, err := io.Copy(file, resp.Body); err != nil {
		return fmt.Errorf("io.Copy: %w", err)
	}

	fmt.Fprintf(w, "DICOM instance retrieved and downloaded to file: %v\n", outputFile)

	return nil
}

Java

import com.google.api.client.http.HttpHeaders;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcare.Projects.Locations.Datasets.DicomStores.Studies.Series.Instances;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Collections;

public class DicomWebRetrieveInstance {
  private static final String DICOM_NAME = "projects/%s/locations/%s/datasets/%s/dicomStores/%s";
  private static final String DICOMWEB_PATH = "studies/%s/series/%s/instances/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void dicomWebRetrieveInstance(String dicomStoreName, String dicomWebPath)
      throws IOException {
    // String dicomStoreName =
    //    String.format(
    //        DICOM_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-dicom-id");
    // String dicomWebPath = String.format(DICOMWEB_PATH, "your-study-id", "your-series-id",
    // "your-instance-id");

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    // Create request and configure any parameters.
    Instances.RetrieveInstance request =
        client
            .projects()
            .locations()
            .datasets()
            .dicomStores()
            .studies()
            .series()
            .instances()
            .retrieveInstance(dicomStoreName, dicomWebPath);

    // Execute the request and process the results.
    HttpResponse response = request.executeUnparsed();

    String outputPath = "instance.dcm";
    OutputStream outputStream = new FileOutputStream(new File(outputPath));
    try {
      response.download(outputStream);
      System.out.println("DICOM instance written to file " + outputPath);
    } finally {
      outputStream.close();
    }

    if (!response.isSuccessStatusCode()) {
      System.err.print(
          String.format("Exception retrieving DICOM instance: %s\n", response.getStatusMessage()));
      throw new RuntimeException();
    }
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    HttpHeaders headers = new HttpHeaders();
    headers.set("X-GFE-SSL", "yes");
    // Avoid parsing multipart boundaries by setting 'application/dicom' HTTP header.
    // Add 'transfer-syntax=*' to avoid transcoding by returning the file in the format it
    // was originally stored in.
    headers.setAccept("application/dicom; transfer-syntax=*");
    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});
const fs = require('fs');
const util = require('util');
const writeFile = util.promisify(fs.writeFile);
const fileName = 'instance_file.dcm';

const dicomWebRetrieveInstance = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const dicomStoreId = 'my-dicom-store';
  // const studyUid = '1.3.6.1.4.1.5062.55.1.2270943358.716200484.1363785608958.61.0';
  // const seriesUid = '2.24.52329571877967561426579904912379710633';
  // const instanceUid = '1.3.6.2.4.2.14619.5.2.1.6280.6001.129311971280445372188125744148';
  const parent = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/dicomStores/${dicomStoreId}`;
  const dicomWebPath = `studies/${studyUid}/series/${seriesUid}/instances/${instanceUid}`;
  const request = {parent, dicomWebPath};

  const instance =
    await healthcare.projects.locations.datasets.dicomStores.studies.series.instances.retrieveInstance(
      request,
      {
        headers: {Accept: 'application/dicom; transfer-syntax=*'},
        responseType: 'arraybuffer',
      }
    );
  const fileBytes = Buffer.from(instance.data);

  await writeFile(fileName, fileBytes);
  console.log(
    `Retrieved DICOM instance and saved to ${fileName} in current directory`
  );
};

dicomWebRetrieveInstance();

Python

def dicomweb_retrieve_instance(
    project_id,
    location,
    dataset_id,
    dicom_store_id,
    study_uid,
    series_uid,
    instance_uid,
):
    """Handles the GET requests specified in the DICOMweb standard.

    See https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/dicom
    before running the sample."""

    # Imports the google.auth.transport.requests transport
    from google.auth.transport import requests

    # Imports a module to allow authentication using Application Default Credentials (ADC)
    import google.auth

    # Gets credentials from the environment. google.auth.default() returns credentials and the
    # associated project ID, but in this sample, the project ID is passed in manually.
    credentials, _ = google.auth.default()

    scoped_credentials = credentials.with_scopes(
        ["https://www.googleapis.com/auth/cloud-platform"]
    )
    # Creates a requests Session object with the credentials.
    session = requests.AuthorizedSession(scoped_credentials)

    # URL to the Cloud Healthcare API endpoint and version
    base_url = "https://healthcare.googleapis.com/v1"

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'  # replace with your GCP project ID
    # location = 'us-central1'  # replace with the parent dataset's location
    # dataset_id = 'my-dataset'  # replace with the parent dataset's ID
    # dicom_store_id = 'my-dicom-store' # replace with the DICOM store ID
    # study_uid = '1.3.6.1.4.1.5062.55.1.2270943358.716200484.1363785608958.61.0'  # replace with the study UID
    # series_uid = '2.24.52329571877967561426579904912379710633'  # replace with the series UID
    # instance_uid = '1.3.6.2.4.2.14619.5.2.1.6280.6001.129311971280445372188125744148'  # replace with the instance UID
    url = f"{base_url}/projects/{project_id}/locations/{location}"

    dicom_store_path = "{}/datasets/{}/dicomStores/{}".format(
        url, dataset_id, dicom_store_id
    )

    dicomweb_path = "{}/dicomWeb/studies/{}/series/{}/instances/{}".format(
        dicom_store_path, study_uid, series_uid, instance_uid
    )

    file_name = "instance.dcm"

    # Set the required Accept header on the request
    headers = {"Accept": "application/dicom; transfer-syntax=*"}
    response = session.get(dicomweb_path, headers=headers)
    response.raise_for_status()

    with open(file_name, "wb") as f:
        f.write(response.content)
        print(
            "Retrieved DICOM instance and saved to {} in current directory".format(
                file_name
            )
        )

    return response

Mengambil format gambar konsumen

Contoh berikut menunjukkan cara mengambil format pencitraan konsumen seperti JPEG atau PNG menggunakan implementasi Resource yang Dirender Cloud Healthcare API. Untuk mengetahui informasi selengkapnya, lihat Resource yang dirender dalam pernyataan kesesuaian DICOM Cloud Healthcare API.

Untuk informasi selengkapnya, lihat projects.locations.datasets.dicomStores.studies.series.instances.retrieveRendered.

Catatan: Jika Anda merender gambar multi-frame, gunakan metode frames.retrieveFrames, bukan metode frames.retrieveRendered karena frames.retrieveRendered tidak mendukung gambar multi-frame.

curl

Untuk mengambil gambar, buat permintaan GET dan tentukan informasi berikut:

• Nama set data induk
• Nama penyimpanan DICOM
• ID unik (UID) studi
• UID seri
• UID instance
• Nama file output
• Token akses

Contoh berikut menunjukkan cara mengambil gambar PNG dengan permintaan GET menggunakan curl.

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     -H "Accept: image/png" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID/rendered" \
     --output FILENAME.png

Jika permintaan berhasil, file PNG akan ditulis ke komputer Anda.

PowerShell

Untuk mengambil gambar, buat permintaan GET dan tentukan informasi berikut:

• Nama set data induk
• Nama penyimpanan DICOM
• ID unik (UID) studi
• UID seri
• UID instance
• Nama file output
• Token akses

Contoh berikut menunjukkan cara mengambil gambar PNG dengan permintaan GET menggunakan Windows PowerShell.

$cred = gcloud auth application-default print-access-token
$headers = @{ Authorization = "Bearer $cred"; Accept = "image/png" }

Invoke-RestMethod `
  -Method Get `
  -Headers $headers `
  -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID/rendered"
  -OutFile FILENAME.png `

Jika permintaan berhasil, file PNG akan ditulis ke komputer Anda.

Go

import (
	"context"
	"fmt"
	"io"
	"os"

	healthcare "google.golang.org/api/healthcare/v1"
)

// dicomWebRetrieveRendered retrieves a consumer imaging format like JPEG or PNG.
func dicomWebRetrieveRendered(w io.Writer, projectID, location, datasetID, dicomStoreID, dicomWebPath string, outputFile string) error {
	// projectID := "my-project"
	// location := "us-central1"
	// datasetID := "my-dataset"
	// dicomStoreID := "my-dicom-store"
	// dicomWebPath := "studies/1.3.6.1.4.1.11129.5.5.1113639985/series/1.3.6.1.4.1.11129.5.5.1953511724/instances/1.3.6.1.4.1.11129.5.5.9562821369/rendered"
	// outputFile := "rendered_image.png"
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	storesService := healthcareService.Projects.Locations.Datasets.DicomStores.Studies.Series.Instances

	parent := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/dicomStores/%s", projectID, location, datasetID, dicomStoreID)

	call := storesService.RetrieveRendered(parent, dicomWebPath)
	call.Header().Set("Accept", "image/png")
	resp, err := call.Do()
	if err != nil {
		return fmt.Errorf("RetrieveRendered: %w", err)
	}

	defer resp.Body.Close()

	if resp.StatusCode > 299 {
		return fmt.Errorf("RetrieveRendered: status %d %s: %s", resp.StatusCode, resp.Status, resp.Body)
	}

	file, err := os.Create(outputFile)
	if err != nil {
		return fmt.Errorf("os.Create: %w", err)
	}
	defer file.Close()
	if _, err := io.Copy(file, resp.Body); err != nil {
		return fmt.Errorf("io.Copy: %w", err)
	}

	fmt.Fprintf(w, "Rendered PNG image retrieved and downloaded to file: %v\n", outputFile)

	return nil
}

Java

import com.google.api.client.http.HttpHeaders;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcare.Projects.Locations.Datasets.DicomStores.Studies.Series.Instances;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Collections;

public class DicomWebRetrieveRendered {
  private static final String DICOM_NAME = "projects/%s/locations/%s/datasets/%s/dicomStores/%s";
  private static final String DICOMWEB_PATH = "studies/%s/series/%s/instances/%s/rendered";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void dicomWebRetrieveRendered(String dicomStoreName, String dicomWebPath)
      throws IOException {
    // String dicomStoreName =
    //    String.format(
    //        DICOM_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-dicom-id");
    // String dicomWebPath = String.format(DICOMWEB_PATH, "your-study-id", "your-series-id",
    // "your-instance-id");

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    // Create request and configure any parameters.
    Instances.RetrieveRendered request =
        client
            .projects()
            .locations()
            .datasets()
            .dicomStores()
            .studies()
            .series()
            .instances()
            .retrieveRendered(dicomStoreName, dicomWebPath);

    // Execute the request and process the results.
    HttpResponse response = request.executeUnparsed();

    String outputPath = "image.png";
    OutputStream outputStream = new FileOutputStream(new File(outputPath));
    try {
      response.download(outputStream);
      System.out.println("DICOM rendered PNG image written to file " + outputPath);
    } finally {
      outputStream.close();
    }

    if (!response.isSuccessStatusCode()) {
      System.err.print(
          String.format(
              "Exception retrieving DICOM rendered image: %s\n", response.getStatusMessage()));
      throw new RuntimeException();
    }
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    HttpHeaders headers = new HttpHeaders();
    headers.set("X-GFE-SSL", "yes");
    // Retrieve using the PNG consumer imaging format.
    headers.setAccept("image/png");
    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});
const fs = require('fs');
const util = require('util');
const writeFile = util.promisify(fs.writeFile);
const fileName = 'rendered_image.png';

const dicomWebRetrieveRendered = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const dicomStoreId = 'my-dicom-store';
  // const studyUid = '1.3.6.1.4.1.5062.55.1.2270943358.716200484.1363785608958.61.0';
  // const seriesUid = '2.24.52329571877967561426579904912379710633';
  // const instanceUid = '1.3.6.2.4.2.14619.5.2.1.6280.6001.129311971280445372188125744148';
  const parent = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/dicomStores/${dicomStoreId}`;
  const dicomWebPath = `studies/${studyUid}/series/${seriesUid}/instances/${instanceUid}/rendered`;
  const request = {parent, dicomWebPath};

  const rendered =
    await healthcare.projects.locations.datasets.dicomStores.studies.series.instances.retrieveRendered(
      request,
      {
        headers: {Accept: 'image/png'},
        responseType: 'arraybuffer',
      }
    );
  const fileBytes = Buffer.from(rendered.data);

  await writeFile(fileName, fileBytes);
  console.log(
    `Retrieved rendered image and saved to ${fileName} in current directory`
  );
};

dicomWebRetrieveRendered();

Python

def dicomweb_retrieve_rendered(
    project_id,
    location,
    dataset_id,
    dicom_store_id,
    study_uid,
    series_uid,
    instance_uid,
):
    """Handles the GET requests specified in the DICOMweb standard.

    See https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/dicom
    before running the sample."""

    # Imports the google.auth.transport.requests transport
    from google.auth.transport import requests

    # Imports a module to allow authentication using Application Default Credentials (ADC)
    import google.auth

    # Gets credentials from the environment. google.auth.default() returns credentials and the
    # associated project ID, but in this sample, the project ID is passed in manually.
    credentials, _ = google.auth.default()

    scoped_credentials = credentials.with_scopes(
        ["https://www.googleapis.com/auth/cloud-platform"]
    )
    # Creates a requests Session object with the credentials.
    session = requests.AuthorizedSession(scoped_credentials)

    # URL to the Cloud Healthcare API endpoint and version
    base_url = "https://healthcare.googleapis.com/v1"

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'  # replace with your GCP project ID
    # location = 'us-central1'  # replace with the parent dataset's location
    # dataset_id = 'my-dataset'  # replace with the parent dataset's ID
    # dicom_store_id = 'my-dicom-store' # replace with the DICOM store ID
    # study_uid = '1.3.6.1.4.1.5062.55.1.2270943358.716200484.1363785608958.61.0'  # replace with the study UID
    # series_uid = '2.24.52329571877967561426579904912379710633'  # replace with the series UID
    # instance_uid = '1.3.6.2.4.2.14619.5.2.1.6280.6001.129311971280445372188125744148'  # replace with the instance UID
    url = f"{base_url}/projects/{project_id}/locations/{location}"

    dicom_store_path = "{}/datasets/{}/dicomStores/{}".format(
        url, dataset_id, dicom_store_id
    )

    dicomweb_path = "{}/dicomWeb/studies/{}/series/{}/instances/{}/rendered".format(
        dicom_store_path, study_uid, series_uid, instance_uid
    )

    file_name = "rendered_image.png"

    # Sets the required Accept header on the request for a PNG image
    headers = {"Accept": "image/png"}
    response = session.get(dicomweb_path, headers=headers)
    response.raise_for_status()

    with open(file_name, "wb") as f:
        f.write(response.content)
        print(
            "Retrieved rendered image and saved to {} in current directory".format(
                file_name
            )
        )

    return response

Mengambil metadata

Anda dapat mengambil metadata untuk semua instance dalam sebuah studi atau seri. Contoh berikut menunjukkan cara mengambil metadata untuk sebuah instance. Untuk mengetahui informasi selengkapnya, lihat Resource metadata dalam pernyataan kesesuaian DICOM Cloud Healthcare API.

Untuk informasi selengkapnya, lihat projects.locations.datasets.dicomStores.studies.series.instances.retrieveMetadata.

Saat Anda memanggil retrieveMetadata, metode ini akan menampilkan kumpulan kolom yang sama, yang juga ditampilkan saat Anda menelusuri instance dengan parameter kueri includefield=all. Jika aplikasi Anda sensitif terhadap latensi dan Anda ingin mengambil metadata untuk kumpulan kolom tertentu (bukan semua kolom), jangan panggil retrieveMetadata. Sebagai gantinya, panggil salah satu metode searchForInstances dan tentukan kolomnya. Responsnya akan berupa kumpulan kolom yang lebih kecil, dan kumpulan kolom yang lebih kecil akan berguna untuk aplikasi yang sensitif terhadap latensi.

Secara default, retrieveMetadata menampilkan respons JSON. Untuk menampilkan respons XML, teruskan header HTTP Accept: multipart/related; type="application/dicom+xml" dalam permintaan Anda.

REST

Sebelum menggunakan salah satu data permintaan, lakukan penggantian berikut:

• PROJECT_ID: ID project Google Cloud Anda
• LOCATION: lokasi set data
• DATASET_ID: set data induk penyimpanan DICOM
• DICOM_STORE_ID: ID penyimpanan DICOM
• STUDY_INSTANCE_UID: ID unik instance studi
• SERIES_INSTANCE_UID: ID unik instance deret
• INSTANCE_UID: ID unik instance

Untuk mengirim permintaan Anda, pilih salah satu opsi berikut:

curl

Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login, atau menggunakan Cloud Shell, yang secara otomatis membuat Anda login ke CLI gcloud. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

Jalankan perintah berikut:

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID/metadata"

PowerShell

Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

Jalankan perintah berikut:

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred" }

Invoke-WebRequest `
    -Method GET `
    -Headers $headers `
    -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID/metadata" | Select-Object -Expand Content

APIs Explorer

Buka halaman referensi metode. Panel APIs Explorer akan terbuka di sisi kanan halaman. Anda bisa berinteraksi dengan alat ini untuk mengirim permintaan. Lengkapi kolom yang wajib diisi, lalu klik Jalankan.

Anda akan melihat respons JSON seperti berikut:

Respons

[
  {
    "00020002": {
      "vr": "UI",
      "Value": [
        "UNIQUE_IDENTIFIER"
      ]
    },
    "00020003": {
      "vr": "UI",
      "Value": [
        "UNIQUE_IDENTIFIER"
      ]
    },
    "00020010": {
      "vr": "UI",
      "Value": [
        "UNIQUE_IDENTIFIER"
      ]
    },
    "00020012": {
      "vr": "UI",
      "Value": [
        "UNIQUE_IDENTIFIER"
      ]
    },
    "00020013": {
      "vr": "SH",
      "Value": [
        "OFFIS_DCMTK_"
      ]
    },
    "00080016": {
      "vr": "UI",
      "Value": [
        "UNIQUE_IDENTIFIER"
      ]
    },
    ...
  }
]

Mengambil data massal

Pratinjau

Bagian ini menjelaskan fitur Pratinjau yang dapat berubah dan mungkin memiliki dukungan terbatas. Perubahan pada produk dan fitur pra-GA mungkin tidak kompatibel dengan versi pra-GA lainnya. Untuk mengetahui informasi selengkapnya, lihat Persyaratan Penawaran Pra-GA untuk Cloud Healthcare API dan deskripsi tahap peluncuran.

Anda bisa mengambil byte mentah untuk tag data massal tertentu dalam instance tersimpan. Saat mengambil metadata dari instance menggunakan metode Pratinjau, BulkDataURIs akan dibuat untuk tag data massal yang didukung (lihat Definisi Bulkdata).

Untuk informasi selengkapnya, lihat projects.locations.datasets.dicomStores.studies.series.instances.bulkdata.retrieveBulkdata.

Contoh berikut akan membuat URL permintaan secara langsung berdasarkan jalur tag data massal yang diketahui (tanpa menggunakan retrieveMetadata untuk mendapatkan BulkDataURI).

curl

Untuk mengambil data massal, buat permintaan GET dan tentukan informasi berikut:

• Nama set data induk
• Nama penyimpanan DICOM
• ID unik (UID) studi
• UID seri
• UID instance
• Jalur tag data massal target
  • Untuk tag (XXXX,XXXX) dalam urutan (YYYY,YYYY) pada indeks i, jalurnya adalah "YYYYYYYY/i/XXXXXXXX"
• Nama file output
• Token akses

Contoh berikut menunjukkan cara mengambil file DAT dengan permintaan GET menggunakan curl.

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
     -H "Accept: application/octet-stream; transfer-syntax=*" \
     "https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID/bulkdata/BULKDATA_PATH" \
     --output FILENAME.dat

Jika permintaan berhasil, file DAT yang berisi byte mentah dari instance akan ditulis ke mesin Anda.

PowerShell

Untuk mengambil data massal, buat permintaan GET dan tentukan informasi berikut:

• Nama set data induk
• Nama penyimpanan DICOM
• ID unik (UID) studi
• UID seri
• UID instance
• Jalur tag data massal target
  • Untuk tag (XXXX,XXXX) dalam urutan (YYYY,YYYY) pada indeks i, jalurnya adalah "YYYYYYYY/i/XXXXXXXX"
• Nama file output
• Token akses

Contoh berikut menunjukkan cara mengambil file DAT dengan permintaan GET menggunakan Windows PowerShell.

$cred = gcloud auth application-default print-access-token
$headers = @{ Authorization = "Bearer $cred"; Accept = "application/octet-stream; transfer-syntax=*" }

Invoke-RestMethod `
  -Method Get `
  -Headers $headers `
  -Uri "https://healthcare.googleapis.com/v1beta1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID/series/SERIES_INSTANCE_UID/instances/INSTANCE_UID/bulkdata/BULKDATA_PATH"
  -OutFile FILENAME.DAT `

Jika permintaan berhasil, file DAT yang berisi byte mentah dari instance akan ditulis ke mesin Anda.

Menggunakan DICOMweb CLI

Contoh berikut menunjukkan cara menggunakan DICOMweb CLI Cloud Healthcare API untuk mengambil semua instance di penyimpanan DICOM dan menyimpannya ke komputer Anda di direktori kerja saat ini. Ada lebih banyak contoh yang tersedia di repositori GitHub CLI DICOMweb.

dcmweb \
  https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb \
  retrieve

Jika permintaan berhasil, server akan menampilkan respons yang mirip dengan berikut ini dan file DICOM akan ditulis ke komputer Anda:

TIMESTAMP -- Saving files into ./
TIMESTAMP -- Transferred SIZE in COUNT files

Menghapus studi, rangkaian, atau instance

Cloud Healthcare API menerapkan layanan web eksklusif untuk menghapus studi, rangkaian, dan instance DICOM. Layanan ini bukan bagian dari layanan standar DICOMweb. Untuk mengetahui informasi selengkapnya, lihat bagian Hapus dalam pernyataan kesesuaian DICOM Cloud Healthcare API.

Permintaan penghapusan untuk studi dan seri menampilkan operasi yang berjalan lama. Setelah operasi selesai, semua instance dalam studi atau rangkaian akan dihapus.

Permintaan penghapusan untuk instance tidak menampilkan operasi yang berjalan lama, tetapi menampilkan isi respons kosong seperti berikut:

{}

Contoh berikut menunjukkan cara menghapus studi DICOM. Untuk informasi selengkapnya, lihat projects.locations.datasets.dicomStores.studies.delete.

REST

1. Menghapus studi.

   Sebelum menggunakan salah satu data permintaan, lakukan penggantian berikut:

   • PROJECT_ID: ID project Google Cloud Anda
   • LOCATION: lokasi set data
   • DATASET_ID: set data induk penyimpanan DICOM
   • DICOM_STORE_ID: ID penyimpanan DICOM
   • STUDY_INSTANCE_UID: ID unik instance studi

   Untuk mengirim permintaan Anda, pilih salah satu opsi berikut:

   curl

   Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login, atau menggunakan Cloud Shell, yang secara otomatis membuat Anda login ke CLI gcloud. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

   Jalankan perintah berikut:

   curl -X DELETE \
        -H "Authorization: Bearer $(gcloud auth print-access-token)" \
        "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID"

   PowerShell

   Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

   Jalankan perintah berikut:

   $cred = gcloud auth print-access-token
   $headers = @{ "Authorization" = "Bearer $cred" }
   
   Invoke-WebRequest `
       -Method DELETE `
       -Headers $headers `
       -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb/studies/STUDY_INSTANCE_UID" | Select-Object -Expand Content

   APIs Explorer

   Buka halaman referensi metode. Panel APIs Explorer akan terbuka di sisi kanan halaman. Anda bisa berinteraksi dengan alat ini untuk mengirim permintaan. Lengkapi kolom yang wajib diisi, lalu klik Jalankan.

   Anda akan melihat respons JSON seperti berikut:

   Respons

   {
     "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID"
   }
   

2. Mendapatkan status operasi yang berjalan lama.

   Sebelum menggunakan salah satu data permintaan, lakukan penggantian berikut:

   • PROJECT_ID: ID project Google Cloud Anda
   • LOCATION: lokasi set data
   • DATASET_ID: set data induk penyimpanan DICOM
   • OPERATION_ID: ID yang ditampilkan dari operasi yang berjalan lama

   Untuk mengirim permintaan Anda, pilih salah satu opsi berikut:

   curl

   Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login, atau menggunakan Cloud Shell, yang secara otomatis membuat Anda login ke CLI gcloud. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

   Jalankan perintah berikut:

   curl -X GET \
        -H "Authorization: Bearer $(gcloud auth print-access-token)" \
        "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID"

   PowerShell

   Catatan: Perintah berikut mengasumsikan bahwa Anda telah login ke CLI gcloud dengan akun pengguna Anda dengan menjalankan gcloud init atau gcloud auth login. Anda dapat memeriksa akun yang aktif saat ini dengan menjalankan gcloud auth list.

   Jalankan perintah berikut:

   $cred = gcloud auth print-access-token
   $headers = @{ "Authorization" = "Bearer $cred" }
   
   Invoke-WebRequest `
       -Method GET `
       -Headers $headers `
       -Uri "https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID" | Select-Object -Expand Content

   APIs Explorer

   Buka halaman referensi metode. Panel APIs Explorer akan terbuka di sisi kanan halaman. Anda bisa berinteraksi dengan alat ini untuk mengirim permintaan. Lengkapi kolom yang wajib diisi, lalu klik Jalankan.

   Anda akan melihat respons JSON seperti berikut:

   Respons

   {
     "name": "projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/operations/OPERATION_ID",
     "metadata": {
       "@type": "type.googleapis.com/google.cloud.healthcare.v1.OperationMetadata",
       "apiMethodName": "google.cloud.healthcare.v1.dicomweb.DicomWebService.DeleteStudy",
       "createTime": "YYYY-MM-DDTHH:MM:SS+ZZ:ZZ",
       "endTime": "YYYY-MM-DDTHH:MM:SS+ZZ:ZZ",
       "logsUrl": "CLOUD_LOGGING_URL",
     },
     "done": true,
     "response": {
       "@type": "type.googleapis.com/google.protobuf.Empty",
     }
   }
   

Go

import (
	"context"
	"fmt"
	"io"

	healthcare "google.golang.org/api/healthcare/v1"
)

// dicomWebDeleteStudy deletes all instances in the given dicomWebPath study.
func dicomWebDeleteStudy(w io.Writer, projectID, location, datasetID, dicomStoreID, dicomWebPath string) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	storesService := healthcareService.Projects.Locations.Datasets.DicomStores.Studies

	parent := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/dicomStores/%s", projectID, location, datasetID, dicomStoreID)

	if _, err := storesService.Delete(parent, dicomWebPath).Do(); err != nil {
		return fmt.Errorf("Delete: %w", err)
	}

	fmt.Fprintf(w, "Deleted %q\n", dicomWebPath)
	return nil
}

Java

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcare.Projects.Locations.Datasets.DicomStores.Studies;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Collections;

public class DicomWebDeleteStudy {
  private static final String DICOM_NAME = "projects/%s/locations/%s/datasets/%s/dicomStores/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void dicomWebDeleteStudy(String dicomStoreName, String studyId) throws IOException {
    // String dicomStoreName =
    //    String.format(
    //        DICOM_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-dicom-id");
    // String studyId = "your-study-id";

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    // Create request and configure any parameters.
    Studies.Delete request =
        client
            .projects()
            .locations()
            .datasets()
            .dicomStores()
            .studies()
            .delete(dicomStoreName, "studies/" + studyId);

    // Execute the request and process the results.
    request.execute();
    System.out.println("DICOM study deleted.");
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }
}

Node.js

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const dicomWebDeleteStudy = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const dicomStoreId = 'my-dicom-store';
  // const studyUid = '1.3.6.1.4.1.5062.55.1.2270943358.716200484.1363785608958.61.0';
  const parent = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/dicomStores/${dicomStoreId}`;
  const dicomWebPath = `studies/${studyUid}`;
  const request = {parent, dicomWebPath};

  await healthcare.projects.locations.datasets.dicomStores.studies.delete(
    request
  );
  console.log('Deleted DICOM study');
};

dicomWebDeleteStudy();

Python

def dicomweb_delete_study(project_id, location, dataset_id, dicom_store_id, study_uid):
    """Handles DELETE requests equivalent to the GET requests specified in
    the WADO-RS standard.

    See https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/dicom
    before running the sample."""

    # Imports the google.auth.transport.requests transport
    from google.auth.transport import requests

    # Imports a module to allow authentication using Application Default Credentials (ADC)
    import google.auth

    # Gets credentials from the environment. google.auth.default() returns credentials and the
    # associated project ID, but in this sample, the project ID is passed in manually.
    credentials, _ = google.auth.default()

    scoped_credentials = credentials.with_scopes(
        ["https://www.googleapis.com/auth/cloud-platform"]
    )
    # Creates a requests Session object with the credentials.
    session = requests.AuthorizedSession(scoped_credentials)

    # URL to the Cloud Healthcare API endpoint and version
    base_url = "https://healthcare.googleapis.com/v1"

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'  # replace with your GCP project ID
    # location = 'us-central1'  # replace with the parent dataset's location
    # dataset_id = 'my-dataset'  # replace with the parent dataset's ID
    # dicom_store_id = 'my-dicom-store' # replace with the DICOM store ID
    # study_uid = '1.3.6.1.4.1.5062.55.1.2270943358.716200484.1363785608958.61.0'  # replace with the study UID
    url = f"{base_url}/projects/{project_id}/locations/{location}"

    dicomweb_path = "{}/datasets/{}/dicomStores/{}/dicomWeb/studies/{}".format(
        url, dataset_id, dicom_store_id, study_uid
    )

    # Sets the required application/dicom+json; charset=utf-8 header on the request
    headers = {"Content-Type": "application/dicom+json; charset=utf-8"}

    response = session.delete(dicomweb_path, headers=headers)
    response.raise_for_status()

    print("Deleted study.")

    return response

Menggunakan DICOMweb CLI

Contoh berikut menunjukkan cara menggunakan DICOMweb CLI Cloud Healthcare API untuk menghapus studi:

dcmweb \
    https://healthcare.googleapis.com/v1/projects/PROJECT_ID/locations/LOCATION/datasets/DATASET_ID/dicomStores/DICOM_STORE_ID/dicomWeb \
   delete studies/STUDY_INSTANCE_UID

Jika permintaan berhasil, server akan menampilkan operasi yang ditelusuri fitur CLI hingga operasi penghapusan selesai.