The Lead Episode 164: A Discussion of Digital Twin–Guided Ablation for Ventricular Tachycardia-The Lead Episode 164 Bonus Video File

Video Transcription

Video Summary

This episode of The LEAD discusses a New England Journal of Medicine pilot study on digital twin–guided ablation for ventricular tachycardia (VT). Dr. Zaman explains that researchers built patient-specific cardiac digital twins from MRI late gadolinium enhancement and electrical modeling to predict VT circuits and plan ablation. In 10 high-risk patients, the digitally guided lesion sets were used in the real EP lab, with 8 patients free of inducible VT at the end of the procedure and 8 still VT-free at about one year, off antiarrhythmic drugs. Dr. Boyle calls the work a milestone for computational physiology, while noting important limitations, such as reliance on image-based models, inability to capture spontaneous arrhythmia initiation, and challenges with non-ischemic substrates and epicardial disease. Both guests see digital twins as a powerful complement to mapping, not a replacement, and emphasize that the next step is scaling the approach across centers.

Keywords

digital twin

ventricular tachycardia

catheter ablation

cardiac MRI

computational physiology