Multi-detector computed tomography-aided endocardial VT ablation in a post-myocardial infarction patient with an antero-apical scar. (A) Multi-detector computed tomography-derived LVWT map integration into the navigation system and imaging-aided VT exit localization according to pacemapping. (B) Voltage EAM rendering and VT substrate ablation according to scar dechannelling technique, with entrance, inner channel points, and HSC-EGMs ablation. CC, conducting channel; EGM, electrogram; MDCT, multi-detector computed tomography; VT, ventricular tachycardia.