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Cross sectional echocardiographic left ventricular ejection fraction: method based variability.

J C Mohan1, K K Sethi, R Arora

  • 1Department of Cardiology, G.B. Pant Hospital, New Delhi.

Indian Heart Journal
|January 1, 1992
PubMed
Summary
This summary is machine-generated.

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Five echocardiographic methods for measuring left ventricular ejection fraction (LVEF) showed no significant differences in healthy volunteers. These methods are equally useful for assessing global left ventricular function in normal hearts.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Echocardiography

Background:

  • Left ventricular ejection fraction (LVEF) is a key indicator of cardiac function.
  • Variability in LVEF measurements can arise from different calculation methods.
  • Standardization of LVEF assessment is crucial for clinical diagnosis and research.

Purpose of the Study:

  • To compare the variability of LVEF measurements using five distinct echocardiographic methods.
  • To evaluate the consistency of left ventricular volume calculations across different techniques.
  • To determine the clinical utility of various LVEF quantification methods in normal subjects.

Main Methods:

  • Cross-sectional echocardiography was performed on 24 healthy volunteers.
  • Left ventricular ejection fraction (LVEF) was calculated using Teichholz, Area-length, single-plane Simpson, Bullet, and Baran Formulae.

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  • Statistical analysis was conducted to assess differences in LVEF and ventricular volumes.

    • Main Results:

    • No statistically significant differences were observed in LVEF values obtained by the five methods (p > 0.50).
    • Left ventricular volumes also showed no significant variations between the methods.
    • A lower limit of LVEF at 50% encompassed a high percentage of the normal population, irrespective of the method used.

    Conclusions:

    • All five echocardiographic methods are equally effective for quantifying global left ventricular function in patients with normal cardiac geometry.
    • The chosen method for LVEF calculation does not significantly impact results in healthy individuals.
    • These findings support the interchangeable use of these methods in clinical settings for normal hearts.