WNT11 and myocardial infarction: To determine whether rAAV9-Wnt11 treatment enhanced cardiac function after ischemic injury, echocardiographic assessments of left-ventricular ejection fraction (LVEF), Left ventricular end diastolic volume (LVEDV) and stroke volume (SV) were performed before injury and repeated in surviving mice on day 1 and weeks 2, 4, and 8 after MI.