Figure 1

Comparison of proposed single-bolus non-ECG-triggered and conventional dual-bolus ECG-triggered methods. (a) Comparison of example ECG-triggered Cartesian and the non-ECG-triggered radial images in a rest perfusion study. Because ECG-triggered Cartesian images are acquired sequentially, they fall during different cardiac phases (mid-systole in the apical compared to early-diastole of the basal slice). (b) Correlation of mean MBF found between the two techniques (r² = 0.86). (b) A Bland-Altman plot comparing the two methods.