Figure 1

Two patients with acute anterior STEMI treated by primary PCI and with the same standard anti-thrombotic therapies. Each patient had TIMI grade 3 flow at the end of the procedure. (a) Patient with high remote zone native T1. Six month follow-up MRI revealed final infarct size was 39.2% of left ventricular mass and significant adverse remodeling occurred with left ventricular end-diastolic volume of 145.7 ml/m2. This patient was subsequently hospitalised for new onset heart failure and had an defibrillator device implanted. (b) Patient with average remote zone native T1 value. The infarct size at 6 months revealed by contrast-enhanced MRI was 31.0% of left ventricular mass and left ventricular end-diastolic volume of 84.3 ml/m2. This patient had an uncomplicated clinical course.