Fig. 2
Atrioventricular plane displacement and longitudinal contribution to stroke volume (SVlong%). CMR images in 2-chamber (2CH), 3-chamber (3CH), 4-chamber (4CH), and short-axis (SA) views at end diastole (ED, upper panes) and end systole (ES, lower panes). The solid lines indicate the atrioventricular planes at ED and the dashed lines at ES. The atrioventricular plane displacement (AVPD) is defined as the distance the atrioventricular plane moves from ED to ES in the indicated direction (arrow). The SVlong% is calculated by multiplying the AVPD with the epicardial short-axis area in ED (marked area in the SA view at the level of the dashed lines) comprising the atrioventricular plane motion, divided with the left ventricular stroke volume