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Related Experiment Videos

Pseudopericardial effusion: echocardiographic and computed tomographic correlations.

A Ansari, A O Rholl

    Clinical Cardiology
    |November 1, 1986
    PubMed
    Summary

    Small echo-free spaces near the heart are often due to subepicardial fat, not true pericardial effusion (PE), especially in older, obese, diabetic patients. Computed tomography (CT) can confirm this fat mimicry.

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    Health physics·2020

    Area of Science:

    • Cardiology
    • Radiology
    • Medical Imaging

    Background:

    • Echocardiography can reveal echo-free spaces mimicking pericardial effusion (PE).
    • Subepicardial fat deposition is a common finding in older, obese, and Type II diabetic patients.
    • Distinguishing between true PE and pseudopericardial effusion is clinically important.

    Purpose of the Study:

    • To evaluate the diagnostic accuracy of echocardiography in differentiating true PE from subepicardial fat deposition.
    • To identify predisposing factors for subepicardial fat accumulation that mimics PE.
    • To assess the utility of computed tomography (CT) in confirming subepicardial fat.

    Main Methods:

    • Retrospective analysis of echocardiography and CT scans in 10 consecutive patients.

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  • Correlation of imaging findings to determine the cause of echo-free spaces.
  • Inclusion criteria focused on older, obese patients with Type II diabetes.

    • Main Results:

    • Small anterior and posterior echo-free spaces were more frequently associated with subepicardial fat than true PE.
    • Subepicardial fat deposition was confirmed by CT in these cases.
    • Age, obesity, and Type II diabetes were identified as key predisposing factors.

    Conclusions:

    • Echocardiographic findings of small anterior/posterior echo-free spaces in specific patient groups often represent subepicardial fat, not true PE.
    • CT imaging is valuable for confirming subepicardial fat and avoiding misdiagnosis of PE.
    • Recognizing predisposing factors aids in accurate interpretation of echocardiographic findings.