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Pseudoaneurysm of the left ventricle. Radiographic and angiocardiographic diagnosis

H Spindola-Franco, N Kronacher

    Radiology
    |April 1, 1978
    PubMed

    Insights

    Left ventricular pseudoaneurysms are contained intrapericardial ruptures with avascular walls, distinct from true aneurysms. Diagnosis involves imaging like left ventriculography and coronary arteriography.

    Area of Science:

    • Cardiology
    • Cardiovascular Imaging
    • Pathology

    Background:

    • Left ventricular pseudoaneurysms (LVPs) are intrapericardial ruptures with avascular walls.
    • True aneurysms have walls composed of infarcted myocardial fibrous tissue containing coronary vessels.
    • Myocardial infarction and prior aneurysmectomy are potential predisposing factors for LVPs.

    Purpose of the Study:

    • To differentiate left ventricular pseudoaneurysms from true aneurysms.
    • To outline diagnostic imaging modalities for pseudoaneurysm detection.

    Main Methods:

    • Review of diagnostic imaging techniques including plain radiography, echocardiography, gated cardiac blood pool imaging, and left ventriculography.
    • Emphasis on the diagnostic utility of combined left ventriculography and selective coronary arteriography.

    Main Results:

    • Left ventricular pseudoaneurysms are characterized by a uni- or multiloculated chamber communicating with the left ventricle via a small orifice.
    • A key diagnostic feature is the absence of coronary vessel draping over the pseudoaneurysm cavity.
    • True aneurysms, conversely, involve coronary vessels within their myocardial walls.

    Conclusions:

    • Left ventricular pseudoaneurysm diagnosis relies on characteristic imaging findings.
    • Distinguishing pseudoaneurysms from true aneurysms is crucial for appropriate clinical management and treatment strategies.

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