Fig. 1

Representative Findings in Patients—Subject-Specific T2* (ssT2*) vs. 20-ms Absolute T2* (aT2* < 20 ms) Cut-off for Hemorrhage Characterization. Representative 2D short-axis T2*-weighted and T2* image sets, along with late-gadolinium-enhanced (LGE) CMR, acquired at 1.5T in patients with hemorrhagic myocardial infarction (MI) in the left anterior descending coronary artery (LAD), left circumflex coronary artery (LCX) and right coronary artery (RCA) territories in the acute (A) and chronic (B) myocardial infarction (MI) phases are shown. Both raw and processed image sets [using ssT2* (second column of panels A and B) and aT2* < 20 ms (third column of panels A and B)] are shown side-by-side for comparison. Magnified representation of T2* maps for the LAD infarction in panels A, B are shown in panel C. Note that although the location of intramyocardial hemorrhage (IMH) is the same with both ssT2* and aT2* < 20 ms, the extent of IMH identified using aT2* < 20 ms approach are visually smaller (see red arrows) compared to that determined using ssT2*