Figure 1.

Three‐dimensional (3D) data are automatically cropped into 18 radial planes. A and B, Annular (black circles) and leaflets tracing (broken white line) are semiautomatically defined and manually adjusted in each radial plane. Posterior and anterior papillary tips are marked manually (red circles) when clearly visible by examination of all radial planes. Midanterior mitral annulus (yellow circle) was defined in cross‐sectional views after complete annulus marking to ensure appropriate positioning. C, Schematic representation of a 3D reconstructed mitral annulus and the relationship between papillary muscles and between the papillary muscles and the annulus. D, Standard measurements are illustrated in the report produced by the dedicated quantification software. All spatial positioning and measurements were performed 6 times during the cardiac cycle, in early‐, mid‐, and late‐diastole and early‐, mid‐, and late‐systole. PM indicates papillary muscle; AP, anterior papillary; AL, antero‐lateral; PM, postero‐medial; ML, medial‐lateral (intercommisural diameter); AP, antero‐posterior.