The possible use of 125I-labeled fibrinogen for the detection of mural thrombosis following myocardial infarction

Abstract Four patients with myocardial infarction are described in whom there was either a sustained rise, or a delayed decay, of precordial radioactivity after the administration of 125 I-labeled fibrinogen. Two patients had necropsy evidence of mural thrombus and one patient developed a cerebrovascular accident. This technique might, therefore, detect the development of intracardiac mural thrombus before embolization occurs.