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Figure 4 Changes in AI values from the LAD and LCx beds (denoted on the images in Figure 3) following the injection of BR14. The LCx has a residual critical stenosis, whereas the LAD bed is normal. Although a flow mismatch is seen early after injection, AI in all viable tissue is similar at a later point in time, indicating redistribution. Where infarction had occurred, a persistent perfusion defect remained. See text for details. Abbreviations as in Figure 2.