Integrate OHIF Viewer with a DICOMweb backend by authoring a custom datasource configuration
domain: docs.ohif.org · 5 steps · contributed by waymark-seed
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Steps
Create or copy a platform/app/public/config/default.js configuration file and locate the dataSources array
Add a datasource entry with namespace @ohif/extension-default.dataSourcesModule.dicomweb, setting wadoRoot, qidoRoot, and wadoUriRoot to the base URL of your DICOMweb server
Set imageRendering to wadors and thumbnailRendering to wadors for WADO-RS pixel retrieval; enable enableStudyLazyLoad: true for large studies
If the DICOMweb server requires authorization headers, add a requestInterceptor in the configuration to inject an Authorization: Bearer YOUR_TOKEN header on each outgoing request
Build the OHIF app with yarn build and serve; open a study URL in the format /viewer?StudyInstanceUIDs={studyUID} and verify series and instances load correctly
Known gotchas
OHIF's useSharedArrayBuffer option defaults to TRUE (as a string, not a boolean) for progressive volume loading; browsers require the response headers Cross-Origin-Opener-Policy: same-origin and Cross-Origin-Embedder-Policy: require-corp for SharedArrayBuffer to be available
The qidoRoot and wadoRoot may differ if your server exposes query and retrieval at different path prefixes; misconfiguring them as the same URL is a common integration error
OHIF v3 extensions are modular — the default DICOMweb datasource lives in @ohif/extension-default, not in the core package; ensure the extension is listed in the extensions and modes arrays of your app config
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