Key result
Digital twins predict critical VT sites with ~81% sensitivity and moderate agreement with invasive mapping.
Why the study?
Catheter ablation of scar-dependent VT is often limited by hemodynamic instability, prolonged procedures, and recurrences, which heart digital twins predicting VT circuits and ablation targets might overcome.
Do MRI-based heart digital twins accurately predict invasive VT circuits and ablation targets in patients with scar-dependent VT?
Population
18 patients with scar-dependent VT
Comparison
Digital twin-predicted VT circuits and ablation lesions vs invasive clinical mapping
Design
Combined clinical and digital twin study
Authors
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May aid noninvasive VT target identification; leaves open prospective validation before clinical adoption.
Observational (n=18)
Do MRI-based heart digital twins accurately predict invasive VT circuits and ablation targets in patients with scar-dependent VT?
Effect estimate: κ coefficient 0.46
p-value: p=≤0.001
MRI-based heart digital twins can accurately predict many features of clinical VT circuits and ablation targets, demonstrating potential to noninvasively guide catheter ablation for scar-dependent VT.
Waight et al. (2025) conducted an observational in Scar-dependent ventricular tachycardia (n=18). Heart digital twin-predicted VT circuits and ablation lesion sets vs. Invasively mapped clinical counterparts was evaluated on Agreement between clinical VT critical sites and digital twin primary predicted sites at an American Heart Association-segment level (κ coefficient 0.46, p=≤0.001). Heart digital twins predicted critical VT sites with 81.3% sensitivity and 83.8% specificity, demonstrating moderate agreement with invasive clinical mapping (κ=0.46, P≤0.001).
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