The Cancer Imaging Archive (NCI) collections (CT, MRI, PET, pathology) under CC BY 3.0 or 4.0
freely available per collection download
Dated Oct 2026Source checked 11 Oct 2026Quote found on its page again 17 Oct 2026Basis: stated
In the source's own words
“Most data are freely available to browse, download, and use for commercial, scientific and educational purposes as outlined in the Creative Commons Attribution 3.0 Unported License or the Creative Commons Attribution 4.0 International License”
Where it was read
TCIA, Data Usage Policies and Restrictions, checked 11 Oct 2026
What it is about
- National Cancer Institute
- Images
Figures it counts in
- free per datasetImages, asking prices off the shelf, per dataset