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Búsqueda de DICOM para estudios con parámetros de consulta o etiquetas DICOM

Usa parámetros de consulta para buscar por etiqueta DICOM, como PatientName.

Investigar más

Para obtener documentación detallada que incluya este código de muestra, consulta lo siguiente:

Usar el estándar DICOMweb

Código de ejemplo

Go

Antes de probar este ejemplo, sigue las Go instrucciones de configuración de la guía de inicio rápido de la API Cloud Healthcare con bibliotecas de cliente. Para obtener más información, consulta la documentación de referencia de la API Go de Cloud Healthcare.

Para autenticarte en la API Cloud Healthcare, configura las credenciales predeterminadas de la aplicación. Para obtener más información, consulta el artículo Configurar la autenticación en un entorno de desarrollo local.

import (
	"context"
	"fmt"
	"io"

	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 := io.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

Antes de probar este ejemplo, sigue las Java instrucciones de configuración de la guía de inicio rápido de la API Cloud Healthcare con bibliotecas de cliente. Para obtener más información, consulta la documentación de referencia de la API Java de Cloud Healthcare.

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

Antes de probar este ejemplo, sigue las Node.js instrucciones de configuración de la guía de inicio rápido de la API Cloud Healthcare con bibliotecas de cliente. Para obtener más información, consulta la documentación de referencia de la API Node.js de Cloud Healthcare.

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

Antes de probar este ejemplo, sigue las Python instrucciones de configuración de la guía de inicio rápido de la API Cloud Healthcare con bibliotecas de cliente. Para obtener más información, consulta la documentación de referencia de la API Python de Cloud Healthcare.

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

Siguientes pasos

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