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Related Experiment Videos

Three echocardiographic methods in right ventricular function evaluation.

P Niederle1, V Jezek, J Jezková

  • 1Institute of Physiological Regulations, Czechoslovak Academy of Sciences, Prague.

Cardiology
|January 1, 1991
PubMed
Summary

Two-dimensional echocardiography using the area-length method with two imaging planes accurately assesses right ventricular (RV) volumes and function. This technique is recommended for screening RV function changes exceeding 12%.

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Echocardiography

Background:

  • Accurate assessment of right ventricular (RV) volumes and function is crucial in cardiovascular diagnostics.
  • Traditional methods for RV assessment can be invasive or less precise.
  • Two-dimensional echocardiography offers a non-invasive approach, but its accuracy for RV evaluation requires validation.

Purpose of the Study:

  • To evaluate the accuracy of different two-dimensional echocardiography methods for assessing right ventricular (RV) volumes and function.
  • To compare echocardiographic results with single-plane RV angiography.
  • To determine the clinical utility of a validated echocardiographic technique for RV assessment.

Main Methods:

  • A series of 44 patients underwent two-dimensional echocardiography and RV angiography within a 7-day interval.

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  • Three distinct echocardiographic approaches were compared.
  • The area-length method utilizing apical 4-chamber and subcostal projections was specifically analyzed.

    • Main Results:

    • The echocardiographic area-length method with two orthogonal planes showed high correlations with RV angiography for end-diastolic volume (r=0.83), end-systolic volume (r=0.82), and stroke volume (r=0.81).
    • Satisfactory correlation was observed for ejection fraction (r=0.75).
    • This method differentiated RV failure with a sensitivity of 0.68 and specificity of 0.82.

    Conclusions:

    • The echocardiographic area-length method using two imaging planes is a reliable technique for assessing right ventricular (RV) volumes and function.
    • This validated method can be recommended as a screening procedure for detecting RV function changes greater than 12%.
    • The findings support the use of echocardiography as a valuable tool in managing RV conditions.