The CT-STEMI study aims to evaluate a comprehensive cardiac computed tomography (CCT) protocol for assessing the risk of heart failure (HF), life-threatening arrhythmias (LTA), and atherothrombotic events following ST-elevation myocardial infarction (STEMI). This multicenter, prospective study has three main objectives: 1. Comparing the diagnostic accuracy of the comprehensive CCT protocol with cardiac magnetic resonance (CMR), considered the non-invasive gold standard. 2. Determining the prognostic value of CCT in assessing myocardial tissue adverse features related to STEMI. 3. Evaluating the atherosclerotic burden in patients with post-acute STEMI. Two hundred patients will undergo both CCT and CMR in the post-acute phase, and their follow-up will focus on monitoring HF, LTA, and ischemic events. The CT-STEMI study represents the first attempt to assess the potential of CCT in providing a comprehensive risk assessment following STEMI in a large contemporary population. The findings of this study have the potential to revolutionize post-STEMI risk stratification practices.