ARVC: Arrhythmogenic Right Ventricular Cardiomyopathy, HCM: Hypertrophic Cardiomyopathy, ICD: Implantable cardioverter defibrillator, ICM: Ischemic Cardiomyopathy, LV: left ventricle, NICM: Non-ischemic Cardiomyopathy, RA: right atrium, RCC: the right coronary cusp of the aortic valve, RVa: Right ventricular apex, TOF: Tetralogy of Fallot, VT: Ventricular tachycardia.