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FIGURE 3. Perfusion bull's eyes (left) and relative quantitative perfusion SPECT scores (right) in patient with previous myocardial infarction and double-vessel disease. (Top) Early imaging identified fixed perfusion defect of inferior wall and reversible defect of anterior and anteroseptal walls, resulting in SDS of 10. (Bottom) Standard delayed imaging failed to identify reversible defect in territory of left anterior descending coronary artery, resulting in SDS of 1. Therefore, 2 different clinical messages were obtained from same patient: previous inferior myocardial infarction plus anterior myocardial ischemia using early imaging and previous inferior infarction without ischemia using standard delayed scans.
