Figure 4From: Quantification of myocardial blood flow with cardiovascular magnetic resonance throughout the cardiac cycle Individual stress MBF estimates in healthy volunteers. There was significant cyclic variation in stress MBF in all volunteers (n = 30). In all cases the peak MBF occurred at end-diastole and the minimum at end-systole. The mean maximal cyclic variation in stress MBF was 26%. MBF = myocardial blood flow.Back to article page