CT-DeltaBench: Prior vs Current CT Comparison Is Still Unsolved
CT-ΔBench scores prior-vs-current CT difference reports on 2,638/169 CT-RATE pairs. Zero-shot Change-F1 tops out at 0.0175; DeltaMed full SFT reaches 0.1980.
August 21, 2026
Guides, project breakdowns, and lessons learned from building medical imaging platforms — written by the PYCAD team.
CT-ΔBench scores prior-vs-current CT difference reports on 2,638/169 CT-RATE pairs. Zero-shot Change-F1 tops out at 0.0175; DeltaMed full SFT reaches 0.1980.
AMPLIFAI adds LI-RADS categories plus voxel masks for APHE, washout, and capsule on 590 multiphase CTs, so liver AI can show the features in a viewer.
RadYOLO is a 3D YOLO11 for joint detection and instance segmentation on CT and MRI. It is 8-46x faster than nnU-Net on GPU and stronger on lesions.
PatchChestCT adds physician-reviewed 3D patch labels for nine chest CT findings on 2,201 CT-RATE studies, so models can localize, not just classify.
This blog is about how to use the nifti2dicom functin to convert nifti file or files into dicom series.
The dice loss in a special case of the dice coefficient but physically they are the same. Read this arrticle for more details
We build custom medical imaging platforms — advanced DICOM viewers, AI segmentation, and the clinical systems around them.
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