Computed Tomography-Guided Catheter Ablation for Ventricular Tachycardia

Inclusion Criteria: * Age ≥ 18 years, * Indication for catheter ablation intervention with planned preoperative cardiac CT scan * Prior myocardial infarction (using the international definition of MI: Q waves or imaging evidence of regional myocardial akinesis/thinning in the absence of a non- ischemic cause with documentation of prior ischemic injury), * Presence of an implantable cardioverter defibrillator, or planned ID implantation before discharge, and * One of the following monomorphic VT events within last 6 months: * A: ≥3 episodes of VT treated with antitachycardia pacing (ATP), * B: ≥1 appropriate ICD shocks, * C: sustained VT below detection rate of the ICD documented by ECG or any cardiac monitor * D: Sustained VT recorded on 12 leads ECG in the absence of ICD * Highly effective contraception for women of childbearing potential, maintained during research procedures * Signed informed consent , * Affiliated to or beneficiary of a health insurance Exclusion Criteria: * Unable to understand the nature, risks, significance and implications of the clinical investigation or unwilling to provide written informed consent, * Active ischemia (acute thrombus diagnosed by coronary angiography, or dynamic ST segment changes demonstrated on ECG) or another reversible cause of VT (e.g. drug-induced arrhythmia), had recent acute coronary syndrome within 30 days thought to be due to acute coronary arterial thrombosis, or have CCS functional class IV angina. Note that b…