Anti-CoagulaTion on Left Ventricular Thrombus After ST Segment Elevation Myocardial Infarction

Inclusion Criteria: Established ST segment elevation myocardial infarction within 7 days Left ventricular thrombus (LVT) is detected by either cardiac magnetic resonance (CMR) or TTE. Ongoing treatment with dual anti-platelet therapy according to ESC/AHA guidelines at the time of randomization Exclusion Criteria: Clinically or hemodynamically unstable planed major surgeon such as CABG or Valve replacement within next 12 months Concomitant condition that requires anti- coagulation therapy, such as AF, DVT. Any contraindication of anticoagulant therapy History of intracranial hemorrhage; Woman who is currently pregnant, or breastfeeding serious impaired renal and liver functions life expectancy less than 1 year can not provide consent