Interest of Coronary CT Scan Before Complex Chronic Total Occlusion (CTO) Percutaneous Coronary Intervention (PCI).
The chronic total occlusion of a coronary artery is the most frequent cardiac disease in the developped countries. The percutaneous coronary intervention is one of the existing treatments. This procedure is long, expensive and uses a lot of contrast medium and X ray. With this study, the investigators want to adress the impact of CT scan performed before the surgical procedure. A better knowledge of the patient's anatomy could lead to a better success rate of the operation, with a lower radiation, lower contrast injection, and a faster and more cost-efficient procedure.
• Male or female ≥ 18 years old and ≤ 90 years old,
• BMI ≤ 40 kg/m²,
• Dated and signed informed consent, before any study-related procedures
• Ability to understand and comply with the study procedures,
• Affiliate or recipient of a social security scheme,
• Coronary artery chronic total occlusion (TIMI 0 flow from \> 3 months) associated with myocardial viability (intended like normokinetic/hypokinetic wall motion or instrumental data in favor of viability) associated with ≥ CCS2 angina or ≥ NHYA2 dyspnea or documented ischemia or ejection fraction \<50%.
• Coronary angiography J-CTO score ≥ 2 (complex cases)