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Figure 1 The grading of technetium-99m macroaggregated albumin single-photon emission computed tomographic defect score in patients with anterior myocardial infarction. A four-point defect score system was employed (normal = 0, Panel A; slightly reduced = 1, Panel B; moderately reduced = 2, Panel C; and absent uptake = 3, Panel D). The short-axis slices from apical to basal are displayed on the left and vertical long-axis slices on the right.
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