Fig. 4

RS comparison before and after treatment of a HHD patient. Long-axis left-ventricle views in HHD patient before (a) and after (d) 6-month of treatment with color-map overlay of RS measurements at end systole. The corresponding time course of RS measurements across the cardiac cycle for basal (green line), middle (white line), and apical (purple line) segments are shown in panels b and e, respectively. RS measurements before (c) and after (f) treatment for each segment of the 16-segment model are shown