{"entity":{"id":"imaging-data-commons","kind":"collection","name":"NCI Imaging Data Commons (IDC)","aka":[],"tldr":"A free, US government-run online library of cancer scan images that any researcher can browse and download without asking permission first.","summary":"The Imaging Data Commons (IDC) is a cloud-based repository within the US National Cancer Institute's Cancer Research Data Commons (CRDC), launched to support cancer imaging research on the cloud as part of the Cancer Moonshot. It holds over 100 TB of radiology, histopathology and fluorescence slide microscopy images together with image-derived data such as annotations, segmentations and quantitative measurements, plus accompanying clinical data, all harmonised to the DICOM standard.\n\nAll data in IDC is publicly available with no registration or access request required, distinguishing it from most other CRDC nodes that gate genomic or clinical data behind data-use agreements. The web portal integrates a customised OHIF viewer supporting visualisation of DICOM segmentation and radiotherapy structure sets, and lets users define patient cohorts from metadata and export them for downstream analysis alongside other CRDC data types (genomic, proteomic).\n\nFor radiopharmaceutical research, IDC is a source of curated PET/CT and other molecular imaging collections (including some PSMA and FDG PET datasets contributed by NCI-funded studies or individual investigators) that can be used to develop and validate quantitative imaging biomarkers without needing bespoke data-sharing agreements with individual institutions.","asOf":"2026-09-22","links":[{"label":"NCI Imaging Data Commons portal","url":"https://portal.imaging.datacommons.cancer.gov/"},{"label":"NCI CRDC: Imaging Data Commons overview","url":"https://datacommons.cancer.gov/repository/imaging-data-commons"},{"label":"Fedorov et al., Cancer Res 2021: NCI Imaging Data Commons","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC8373794/"}],"tags":["open data","imaging","United States"],"related":["tcia"],"indications":[],"sections":[],"technologies":[],"targets":[],"drugs":[],"companies":[],"institutions":["nci"],"pathways":[],"terms":[],"trials":[],"people":[],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":[],"url":"https://portal.imaging.datacommons.cancer.gov/","holds":"Over 100 TB of publicly available, DICOM-harmonised cancer imaging data (radiology, histopathology, fluorescence slide microscopy) with image-derived annotations, segmentations and quantitative measurements, plus linked clinical data, co-located with cloud analysis tools.","license":"All data are publicly available with no registration or access request, subject to NCI data-use agreements specific to individual contributed datasets.","maintainer":"US National Cancer Institute (NCI), as a node of the Cancer Research Data Commons (CRDC)."},"route":"/collections/imaging-data-commons/","neighbours":{"collection":[{"id":"tcia","kind":"collection","name":"The Cancer Imaging Archive (TCIA)","route":"/collections/tcia/"}],"institution":[{"id":"nci","kind":"institution","name":"National Cancer Institute (NIH)","route":"/institutions/nci/"}]}}