Pulsatile Distention of the Nondiseased and Stenotic Aortic Valve Annulus: Analysis With Electrocardiogram-Gated Computed Tomography

With the use of CT and postprocessing software, significant area and radius changes during the cardiac cycle were demonstrated in both the nondiseased annulus and the stenotic annulus. This finding may help selection of the optimal size in patients undergoing AV implantation and also aid in prosthesis design.