Click on image to view larger version.
FIGURE 1. Dual-isotope (sestamibi and thallium) SPECT study of 51-y-old man with class 4 angina pectoris and hyperlipidemia. Coronary angiography showed 70% lesion in LAD, 80% lesion in first marginal area in LCX territory, 60% lesion in second marginal area in LCX territory, and 60% lesion in RCA and posterior descending artery. Patient exercised on treadmill for 8 min and had 1-mm ST-T depression. He reached 93% of predicted heart rate. Three months after myocardial perfusion imaging and cardiac catheterization, patient underwent coronary bypass surgery. Findings of tomograms (A) and 2-dimensional color modulated images (B) were interpreted as abnormal, with hypoperfused anterior, lateral, and inferior walls.
