Figure 3.
Activation mapping (A) and concealed entrainment (B) of ventricular tachycardia with termination during radiofrequency delivery (C). The intraseptal late potential is finally eliminated and dissociated after ablation from the right ventricular side of the septum. AIV = anterior interventricular vein; GCV = great cardiac vein; LV = left ventricle; RVOT = right ventricular outflow tract; SPV = septal venous perforators.