The mitral valve annulus (non-planar larger ring) and aortic valve annulus (smaller planar ring) are shown. Blue and red spheres indicate anterior and posterior points on the mitral annulus, respectively. Red curve conveys the coaptation line of the anterior and posterior leaflets. Key measured variables are denoted in yellow, unless otherwise noted.
A. Anterior Leaflet Area (blue surface); B. Posterior Leaflet Area (orange surface); C. Anterior Leaflet Length; D. Posterior Leaflet Length; E. Tenting Height; F. Tenting Area (yellow surface).