Prevalence of Cusp Asymmetry, Coronary Ostial Eccentricity in Patients Undergoing Trans Catheter Aortic Valve Implantation and Their Impact on Coronary Ostia Overlap Risk Assessment

The goal of this observational study is to measure the prevalence of Cusps asymmetry, coronary Ostial eccentricity in patients with severe aortic stenosis undergoing Trans-catheter Aortic Valve Implantation (TAVI) and measure the degree of coronary ostia overlap with trans-catheter neo-commissure. The main question it aims to answer is: Do coronary ostial eccentricity or cusp asymmetry have impact on coronary ostia overlap with trans-catheter neo-commissure? Participants already taking TAVI as part of their regular medical care for severe symptomatic aortic stenosis will do post procedural ECG-gated non contrast Multi-detector Computed Tomographic Angiography (MDCTA).