The Temporal Pattern of Recovery of Myocardial Perfusion and Metabolism Delineated by Positron Emission Tomography after Coronary Thrombolysis

most thrombotically occluded coronary arteries during evolving myocardial infarction. However, the extent and persistence of restoration of nutritional myocardial blood flow and regional metabolism have not been well defined. Incomplete restoration ofmyocardial blood flow, the so-called “no-reflowphenomenon―is well recognized early after neperfusion (1,2). Additionally, we and oth ers have reported that blood flow to reperfused myo cardium is diminished 24 hr after neperfusion despite