Many ST-segment elevation myocardial infarction (STEMI) patients treated with primary percutaneous coronary intervention (PCI) are still exposed to a consequence known as left ventricular (LV) remodeling. Most studies have reported that reverse LV remodeling is associated with improved patient outcomes. Cardiac magnetic resonance (CMR) imaging has become a beneficial imaging modality to assess myocardial morphology, LV function and infarct characteristics simultaneously. This study assesses the predictive role of LV volume, LV function and infarct characteristics by CMR on reverse LV remodeling after STEMI. Our data showed that peak CK-MB, extent of MVO volume of LV were independent predictors of reverse LV remodeling.