HeartcareGPT: A Unified Multimodal ECG Suite for Dual Signal-Image Modeling and Understanding

arXiv:2506.05831v4 Announce Type: replace-cross Abstract: Although electrocardiograms (ECG) play a dominant role in cardiovascular diagnosis and treatment, their intrinsic data forms and representational patterns pose significant challenges for medical multimodal large language models (Med-MLLMs) in achieving cross-modal semantic alignment. To address this gap, we propose Heartcare Suite, a unified ECG suite designed for dual signal-image modeling and understanding: (i) Heartcare-400K. A fine-gr