Fig. 19
From: Imaging in Transcatheter Aortic Valve Replacement (TAVR): role of the radiologist
Measurements of sinus of Valsalva height, width and perimeter. The widths (a, red line) and maximal height (a, yellow arrow) of the SOV are important parameters for coronary perfusion after TAVR as they determine whether the valvular prosthesis will be accommodated within the SOV without causing coronary occlusion from displacement of the native valve leaflets. First, to measure the SOV parameters, 3D volume-rendering reconstruction is created, with the area of interested selected at the maximum diameter of SOV (b, green line). Then, based on curved multiplanar reconstruction (c), a true perpendicular image is created (d) where the maximum diameter is measured. The perimeter of the SOV can also be assessed on the same image (e)