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  • Title: Disappearance of a left ventricular aneurysm on radionuclide ventriculography due to formation of a mural thrombus.
    Author: Reimers C, Van Tosh A, Berger M, Luna E, Horowitz SF.
    Journal: Chest; 1993 Sep; 104(3):946-7. PubMed ID: 8365316.
    Abstract:
    Radionuclide ventriculography is an accepted method for diagnosing left ventricular aneurysms, but false-negative studies have been associated with a mural thrombus filling the left ventricular cavity. We describe a patient with a left ventricular aneurysm due to myocardial infarction whose aneurysm scintigraphically "disappeared" from serial radionuclide ventriculograms. This was documented echocardiographically and pathologically to be due to the formation of a large mural thrombus. Review of the literature suggests that radionuclide ventriculography and echocardiography may be complementary techniques in the diagnosis of left ventricular aneurysm. Echocardiography may remain diagnostic when a mural thrombus has caused the loss of the characteristic scintigraphic findings on radionuclide ventriculography.
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