Cardiovascular magnetic resonance by non contrast T1-mapping allows assessment of severity of injury in acute myocardial infarction.

Furthermore, we found a highly significant correlation between global myocardial T1 values and LV ejection fraction (P < 0.01) Salvaged myocardium assessment byT1-mapping In order to match, on a like-for-like basis, the relative LV mass of acutely damaged myocardium by T1-mapping with the one assessed by T2W and to derive comparable values of salvaged myocardium, we used a threshold of 10% (close to 2 standard deviations) above the previously established T1 values in normal controls [ 17 ].

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