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Published on in Vol 14 (2026)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/87227, first published .
Doctor monitors patient's EKG during stress test with treadmill and mask.

Differentiating Ischemic From Nonischemic T-Wave Inversion Using a Multimodal Vision-Language Model With Reinforcement Learning (ECG-R1): Development and Validation Study

Differentiating Ischemic From Nonischemic T-Wave Inversion Using a Multimodal Vision-Language Model With Reinforcement Learning (ECG-R1): Development and Validation Study

Yunzhang Cheng   1 * ;   Zhongkai Wang   2 ;   Wen Zhang   1 * ;   Qin Zhang   2 ;   Mingwei Zhang   1 ;   Songbin Cai   3 ;   Tianyi Zhang   1

1 School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, Yangpu District, China

2 Department of Cardiovasology, Changhai Hospital, Shanghai, Shanghai, China

3 Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China

*these authors contributed equally

Corresponding Author:

  • Yunzhang Cheng
  • School of Health Science and Engineering
  • University of Shanghai for Science and Technology
  • Room 1002, 10th Floor, Zhuoyue Building, No. 334 Jungong Road
  • Shanghai, Yangpu District 200093
  • China
  • Phone: +86 18566664556
  • Email: 18566664556@163.com