Diagnosis of intracardiac thrombus by 99mTc-MAA scintiscanning

Because of its capacity to form a deposit on thrombus fibrin, 99mTc-macroaggregated albumin can be used to detect intracardiac thrombus by routine imaging. The authors report a case of right ventricular thrombus diagnosed antemortem on a routine lung study in a patient with an intracardiac hyperalimentation catheter in place.