- Bone marrow-derived progenitor cells are aspirated under local anaesthesia, and after cell processing, are infused into the patent infarct-related artery during stop flow within the same day. Blood-derived progenitor cells are isolated out of 250ml peripheral venous blood, and after cell processing and 3 days culture, are infused into the patent infarct-related artery during stop flow. In addition, left ventricular angiography is performed. In the control group coronary angiography and left ventricular angiography without any intracoronary infusion are performed.