Novel "late Potential Map" Algorithm: Abnormal Potentials and Scar Channels Detection for Ventricular Tachycardia Ablation.

Automated systems for substrate mapping in the context of ventricular tachycardia (VT) ablation may annotate far‐field rather than near‐field signals, rendering the resulting maps hard to interpret. Additionally, quantitative assessment of local conduction velocity (LCV) remains an unmet need in clinical practice. We evaluate whether a new late potential map (LPM) algorithm can provide an automatic and reliable annotation and localized bipolar voltage measurement of ventricular electrograms (EGMs) and if LCV analysis allows recognizing intrascar conduction corridors acting as VT isthmuses.