Introduction
One of the steps in standardized aortic valve repair is alignment of leaflet free margin lengths1. This step is crucial in bicuspid aortic valve repair, where only two leaflets coapt and must have identical free margin length for the valve to be competent. However, clinical experience shows that tricuspid aortic valves can be very asymmetric in terms leaflet size and free margin length but still function normally2. In tricuspid aortic valves equal effective leaflet height appears to be more important than equal free margin length3,4. The primary aim of the present study was to use coronary computed tomography angiography (CTA) in patients with normal tricuspid aortic valves to perform detailed aortic root and aortic valve geometric analysis with a focus on asymmetry of the three leaflets.