hiti-datathon-2026-cxr-mammo/
Mammography + Chest X-Ray Risk Subtyping
Multimodal fusion beat the best single-modality baseline on AUROC for three of the four outcomes, identifying prevalent cardiometabolic disease from screening images taken for something else entirely.
- Developed a multimodal fusion pipeline combining anonymized mammography and chest X-ray foundation-model embeddings to identify prevalent type 2 diabetes, hypertension, hyperlipidemia, and chronic kidney disease from routine screening imaging.
- Evaluated L2-penalized logistic regression against early-fusion, late-fusion, and gated-fusion MLP architectures, using RankMe-based linear probing for embedding screening and auditing performance across age, race, BMI, and imaging interval.
- Demonstrated the potential for opportunistic cardiometabolic screening from imaging exams already performed for other clinical purposes, with multimodal fusion improving identification of type 2 diabetes and chronic kidney disease without requiring additional imaging.
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