Figure 1

Polar map presentation of signal intensity relative upslope at stress (left) and at rest (right), in a patient with regressed CALs (upper row), and persistent CALs (Giant aneurysm of LMCA 17 × 17 × 20 mm/Aneurysm of LAD origin 4 × 4 mm/Dilation od distal RCA 2. 8 × 8 mm) (lower row). Diffuse significantly impaired myocardial perfusion reserve is revealed in both cases. Additional extensive regional perfusion impairment of the basal to apical anterolateral and inferolateral segments, corresponding to associated diseased epicardial arteries, is demonstrated in the second case. CAL: Coronary Artery Lesion