Figure 4

Stress-induced ischemia (biphasic response) of the infero and infero-lateral wall in a patient with subtotal occlusion of the proximal and distal left circumflex artery (LCX) (white arrows). Improvement at 20 ug/kg/min dobutamine of the wall motion abnormality at rest, however, decreased wall motion at maximum stress level. Late gadolinium enhancement revealed a 50% subendocardial infarction in this region.