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Fig. 5B —46-year-old man with revascularized acute myocardial
infarction. Short-axis delayed-enhancement inversion recovery gradient-echo MR
image (450/1.26; inversion time, 280 milliseconds; flip angle, 50°)
obtained 10 minutes after contrast administration shows nontransmural
infarction and small perfusion defect has become hyperenhanced
(arrow) owing to diffusion of extracellular contrast medium from
surrounding regions.