Ziyu Li
College of Computer Science and Technology, Zhejiang University, Hangzhou, Zhejiang Province, China
ORCID iDZiyu Li has 1 paper in the ChatPPG research atlas (2026) and 19 co-authors in the atlas. Main topics: ECG, cardiac-MRI, cross-modal, contrastive, knowledge-distillation.
Papers
- CardioNets: ECG-CMR Cross-Modal Foundation Model2026 · NEJM AI
CardioNets translates 12-lead ECG into cardiac MRI-level measurements and synthetic MRI images. It combines cross-modal contrastive learning with a masked autoregressive image generator and was trained on 159,819 samples from five cohorts, including UK Biobank, with external validation on 3,767 cases. In UK Biobank it improved cardiac phenotype R² by 24.8% and cardiomyopathy AUC by up to 39.3% over baselines, and in a reader study it was 13.9% more accurate than physicians using ECG plus real MRI.
- Published: NEJM AI
- Training: 159,819 samples from 5 cohorts (incl. UK Biobank, MIMIC-IV-ECG)
- External validation: n = 3,767