Impact of OCT on Outcomes in AMI

Inclusion Criteria: * Age≥18 years old * Patients undergo cardiac catheterization and percutaneous coronary intervention(PCI) for AMI(STEMI or NSTEMI) ST-segment elevation myocardial infarction was defined according to the universal definition of myocardial infarction, symptoms onset≤ 24h.NSTEMI was defined as elevated troponin levels and the absence of ST elevation at the time of diagnosis, PCI was performed within 24hours after symtoms onset. * Sufficient quality of the OCT recording allowing for CoreLab analysis. Exclusion Criteria: * ostial of Left main disease * Cardiogenic shock or severe hemodynamic instability * Severe renal insufficiency (creatinine clearance ≤30 mL/min) * Bacteraemia or septicaemia * Severe coagulation disorders * Patients with life expectancy less than 1 year * Patients who refuse to sign the informed consent form