Harvard AIM Lab (Zeleznik et al.)
Fully automatic pipeline that localizes the heart, segments coronary calcium, and produces an Agatston-style coronary artery calcium score from gated and non-gated chest/cardiac CT. A three-stage 3D CNN performs each step in sequence. Validated across the Framingham, NLST, PROMISE, and ROMICAT-II cohorts, where the resulting calcium score predicted cardiovascular events with hazard ratios up to 4.3. Developed by the Harvard AIM Lab.
Architecture
CNN (3D)
Multi-stage 3D CNN pipeline: heart localization -> coronary calcium segmentation -> Agatston-style calcium scoring
Added to catalog
2026-07-10
GPL 3.0
License for model weights only. Associated code may be licensed seperately, check code source for specific terms.
Framingham Heart Study CT1 Cohort (DeepCAC development)
Framingham Heart Study CT2 Cohort (DeepCAC validation)
Low-dose chest CT scans from heavy smokers in the NLST lung-cancer screening trial, reconstructed with both soft and medium/sharp filters, with per-scan coronary artery, thoracic aorta, and cardiac-valve calcification annotations.
Segmentation