Fig. 2From: Timing for intracoronary administration of bone marrow mononuclear cells after acute ST-elevation myocardial infarction: a pilot studyLeft ventricular ejection fraction at baseline and at 12 months after myocardial infarction. Left ventricular ejection fraction (LVEF) determined by echocardiography initially and at 12-month follow-up in the four groups. Compared with baseline, global LVEF in the four groups was significantly increased on echocardiography at 12 months. Compared with the control group (CON), the absolute change in LVEF from baseline to 12 months was significantly higher in groups A and B, but not in group C. group A bone marrow mononuclear cell (BMC) infusion within 1 day after percutaneous coronary intervention (PCI); group B BMC infusion at 3–7 days after PCI; group C BMC infusion at 7–30 days after PCIBack to article page