Abstract
We read with great interest the recent article by Fernandez-Jimenez et al,1 in which 16 ST-segment elevation myocardial infarction (STEMI) patients each underwent 5 cardiovascular magnetic resonance (CMR) scans following primary percutaneous coronary intervention. They concluded that myocardial edema detected by T2 followed a bimodal pattern, with the first phase appearing at 3 hours and dissipating by 24 hours, and the second phase reappearing thereafter. The authors should be congratulated for completing such a challenging study. However, whether the observed bimodal pattern in edema detected by T2-short tau inversion recovery in their study was actually due to the presence of intramyocardial hemorrhage (IMH) attenuating the T2-signal at 24 hours cannot be excluded. O’Regan et al2 previously reported that …
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