Cardiac magnetic resonance imaging parameters for study population split for change in left ventricular ejection fraction between 4 months and 24 months
| LVEF improvement (n=78) | LVEF deterioration (n=77) | p Value | |
| LVEF (%) | |||
| At 3–5 days | 45±9 | 43±8 | 0.07 |
| 4 months | 46±8 | 50±9 | 0.007 |
| 24 months | 51±9 | 44±8 | 0.001 |
| LVEDV (mL/m2) | |||
| 3–5 days | 98±16 | 98±15 | 0.85 |
| 4 months | 104±22 | 104±22 | 0.96 |
| 24 months | 104±26 | 107±25 | 0.47 |
| LVESV (mL/m2) | |||
| 3–5 days | 57±14 | 57±14 | 0.30 |
| 4 months | 57±14 | 54±15 | 0.27 |
| 24 months | 52±21 | 61±23 | 0.02 |
| Infarct size (g)‡ at 3–5 days | 21±13 | 22±12 | 0.62 |
| Presence of MVO at 3–5 days | 42 (54%) | 48 (63%) | 0.33 |
LVEF, left ventricular ejection fraction (%); LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; MVO, microvascular obstruction.