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Figure 2 Changes over time in the infarcted and edematous areas. The affected area (%) = (area with signal abnormality/area of whole myocardium within slice) x 100. *Significant difference from day 0 (1 h after intervention) and days 28, 90, and 180 (p < 0.05). #Significant difference from days 1, 3, 7, 14, and 28 (p < 0.05). ##Significant difference from days 3 and 7 (p < 0.05). STIR = short T1 inversion recovery.