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  • Title: Comparison of gated cardiac magnetic resonance imaging and two-dimensional echocardiography for the evaluation of right ventricular thrombi: a case report with autopsy correlation.
    Author: Johnson DE, Vacek J, Gollub SB, Wilson DB, Dunn M.
    Journal: Cathet Cardiovasc Diagn; 1988; 14(4):266-8. PubMed ID: 3396069.
    Abstract:
    In a patient who died of complications of severe pulmonary hypertension, right ventricular failure, and sepsis, antemortem two-dimensional (2-D) echocardiography and magnetic resonance imaging (MRI) studies demonstrated a right ventricular mass which at autopsy proved to be thrombus. The diagnostic features of this mass as imaged by these two methods are compared. This case was complicated in that the patient had a history of right atrial myxoma that had been successfully removed three years previously, and a history of several prior pulmonary emboli. Gated MRI depicted the size, shape, and surface characteristics of the mass more clearly than 2-D echocardiography because MRI provided better contrast and spatial resolution. Both techniques were useful in localizing the mass and showing if it was fixed or mobile. Depiction of tumor attachment was unclear with echocardiography but very clear with MRI. MRI also showed a left pulmonary artery thrombus that was not visualized by 2-D echocardiography. Both techniques provided chamber dimension measurements showing enlargement of the right atrium and ventricle. This case demonstrates that gated MRI provides high-quality images of cardiac anatomy and masses. Gated cardiac MRI should be considered at least complementary and potentially superior to two-dimensional echocardiography in the evaluation of intracardiac masses in certain patients.
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