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Figure 5 Schematic representation of the three-dimensional reconstruction of the mitral leaflet geometry, using one short-axis view of the annulus plane (top) and two parasternal long-axis views at the midpoint of the half mitral coaptation line (bottom). The primary chordae connected the tip of the papillary muscles and the corresponding midpoint of the half mitral coaptation line (asterisks). The central papillary muscle lines (L_APM and L_PPM) are illustrated as double arrows from the papillary muscle tips through the chordae attachment (asterisks) to the annular plane. APM = anterolateral papillary muscle; PPM = posteromedial papillary muscle.