Fig. 6

Relation of mitral leaflet and LV basal inferolateral wall motion to early-systolic mitral annular plane. A End-diastole still frame in the 3-chamber view, showing how the posterior mitral leaflet and basal inferolateral segment overlap the annular plane (blue line). B Early end-systolic still frame where the annular plane has been kept in the same anatomical position as in (A). While the basal inferolateral wall has moved apically from the annular plane (white arrows), the leaflet remains in the same position, suggesting inadequate “tracking” of the posterior mitral annulus by the leaflet (decoupling). The complete cine is available in the Additional file 4