Fig. 4

The ability of hyper-acute and acute average T1 value of AAR to predict large infarct size. The ability of using T1 values within the AAR to predict large infarct size was related to the hyper-acute timing of performing CMR imaging (within 3 h post-primary percutaneous coronary intervention (PPCI)). At 24 h, T1 value of AAR was not a predictor of large infarct size