NIH Chest X-ray dataset

The NIH Chest X-ray dataset consists of 100,000 de-identified images of chest x-rays. The images are in PNG format.

The data is provided by the NIH Clinical Center and is available through the NIH download site:

You can also access the data via Google Cloud Platform (GCP), as described in GCP data access.

License and attribution

There are no restrictions on the use of the NIH chest x-ray images. However, the dataset has the following attribution requirements:

  • Provide a link to the NIH download site:

  • Include a citation to the CVPR 2017 paper:

    Xiaosong Wang, Yifan Peng, Le Lu, Zhiyong Lu, Mohammadhadi Bagheri, Ronald Summers, ChestX-ray8: Hospital-scale Chest X-ray Database and Benchmarks on Weakly-Supervised Classification and Localization of Common Thorax Diseases, IEEE CVPR, pp. 3462-3471, 2017

  • Acknowledge that the NIH Clinical Center is the data provider

GCP data access

You can get the NIH chest x-ray images from Cloud Storage, BigQuery, or using the Cloud Healthcare API.

Cloud Storage

The NIH chest x-ray data is available in the following Cloud Storage bucket:


Go to the NIH chest x-ray dataset in Cloud Storage

The bucket includes paths to the original PNG files, as well as to DICOM instances:

PNG (provided by NIH):


DICOM (provided by Google):


The Cloud Storage bucket uses the "Requester Pays" model for billing. Your GCP project will be billed for the charges associated with accessing the NIH data. For more information, see Requester Pays.


The NIH chest x-ray data is available in the chc-nih-chest-xray GCP project in BigQuery.

Go to the NIH chest x-ray dataset in BigQuery

For information about accessing public data in BigQuery, see BigQuery public datasets.

Cloud Healthcare API

The NIH chest x-ray data is available in the following DICOM store hierarchy in Cloud Healthcare API:

Project: chc-nih-chest-xray
Dataset: nih-chest-xray
DICOM store: nih-chest-xray

To request access to the NIH chest x-ray dataset, complete this form.

Go to the NIH chest x-ray dataset in the Cloud Healthcare API

For more information, see the DICOM overview and Using the DICOMweb Standard.

Data viewers

You can also use the viewers that are integrated with the Cloud Healthcare API:


IMS CloudVue:

Additional labels

Additional labels will be released soon.

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