Figure 1

Acquisition planning. Because of the longitudinal lengthening of the heart from systole to diastole, the position of the mid-diastolic (red) and end-systolic perfusion stacks (yellow) (12 slices each) were individually planned from the chosen diastolic (Panel A) and systolic (Panel B) 4-chamber cine frames. Panel C shows both stacks superimposed on the chosen end-systolic frame.