Comparison of cardiac DTI parameters between systole and diastole

Results Two of the original 46 volunteers were excluded due to ECG irregularities. Data from one further volunteer was incomplete and therefore excluded from the final analysis. Results from the remaining 43 volunteers are in table 1. Global FA was higher in diastole than systole (0.56 v 0.47; p < 0.001). The global endocardial HA was significantly more right-handed in systole than diastole (34° v 25°; p < 0.001). The global mesocardial HA was circumferentially orientated and similar in both diastole and systole (-3° v -2°; p = 0.42). The global epicardial HA was slightly more left-handed in systole than diastole (-35° v -30°; p < 0.001). Global MD was higher in diastole than systole (1.11 v 0.93 × 10mm/s; p < 0.001).