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Fig. 5 | European Radiology Experimental

Fig. 5

From: Myocardial tissue characterization by combining late gadolinium enhancement imaging and percent edema mapping: a novel T2 map-based MRI method in canine myocardial infarction

Fig. 5

Corresponding short-axis PEMs are shown on days 3, 6, 14, and 56 following the induction of a reperfused MI in a dog. The PE values are shown on a colour scale representing varying degrees of ME and scar maturation. ME was detectable throughout the first week (black arrows). On day 3, ME is clearly apparent in and around the MI region, with a central clearing in the MI, representing hemorrhage. Maximum ME was detected on day 6, by which time the hemorrhage was cleared. ME was almost completely resolved by day 14. The newly formed scar tissue (grey arrows) had a PE value close to that of the normal myocardium. In the course of maturation, however, the scar tissue shrank and lost water, resulting in negative PE values by day 56 (white arrows). Note also the wall thinning over the course of the 8 weeks in these regions

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