χ2 value incremental value of the infarct size by late gadolinium enhancement as % of LV 3 months after ST-segment elevation myocardial infarction. Clinical data included age, stent implantation, and peak troponin T. LVEDV, LV end-diastolic volume. LVEF, left ventricular ejection fraction. LVESV, LV end-systolic volume.