RSNA - QIBA has launched the "Volumetric Study 3A" Challenge leveraging TCIA's RIDER data
QUIBA (The Quantitative Imaging Biomarkers Alliance) invites participation in the QIBA 3A CT Volumetry Study of CLINICAL data.
Information about the challenge is at http://qibawiki.rsna.org/index.php?title=VolCT_-_Group_3A
Additional information about the RIDER data set is at https://wiki.cancerimagingarchive.net/display/Public/RIDER+Collections