Figure B3.
The major and minor axis for mitral annulus demonstrated on a typical D‐shaped annular geometry. A1‐A3 and P1‐P3 are the MV leaflets segments. X AL and X PL are preselected to define the major axis. X AM is the anterior middle point and X PM is the intersection point of E 2‐E 3 plane and the posterior annulus. E 3 is the third axis orthogonal to the major‐minor plane. A1, anterolateral segment; A2, anteromiddle segment; A3, anteromedial segment; P1, posterolateral segment; P2, posteromiddle segment; P3, posteromedial segment