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Kim, Park, Kim, Lee, Kim, and Kwon: Comparisons of the Left Ventricular Ejection Fraction Between M-Mode, Two-Dimension Echocardiographic Studies and Digital Cardiac Imaging(DCI) System in Ventricular Septal Defects*
Original Article
Korean Circulation Journal

Korean Circulation Journal 1995; 25(2): 492-498.

Published online: 30 April 1995

DOI: https://doi.org/10.4070/kcj.1995.25.2.492

Comparisons of the Left Ventricular Ejection Fraction Between M-Mode, Two-Dimension Echocardiographic Studies and Digital Cardiac Imaging(DCI) System in Ventricular Septal Defects*

Dong Suk Kim, M.D., Geun Soo Park, M.D., Myung Sung Kim, M.D., Sang Lak Lee, M.D., Joon Sik Kim, M.D., Tae Chan Kwon, M.D.

Copyright © 1995 The Korean Society of Circulation

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background

Left ventricular performance is one of the most important factors for the prognosis of congenital and acquired heart diseases. Measure of left ventricular performance such as chamber volume and ejection fraction are usually deemed most reiable when derived from cardiac catheterization data. Measurement of ventricular volume and ejection fraction by M-mode echocardiography may be compromised by segmental dysfunction or paradoxical septal motion. We compared ejection fraction derived from M-mode and two-dimensional echocardiographic methods to those derived from newly developed DCI (Digital Cardiac Imaging) system to determine the most accurate noninvasive technique for prediction these variables in children.

Methods

The ejection fraction measured by M-mode, Two-dimensional echocardiography was compared with the ejection fraction by DCI system in 22 patients who were admitted to the department of Pediatrics, Dong San Hospital during the period of 8 months from November 1992 to June 1993 for the evaluation of ventricular septal defect.

Results

M-mode measured ejection fraction correlated with Two-dimensional echocardiography measured ejection fraction(γ=0.54).
M-mode measuredd ejection fraction correlated with the DCI system measured ejection fraction(γ=0.52).
Two-dimensional echocardiography measured ejection fraction correlated well with the DCI system measured ejection fraction(γ=0.88).

Conclusion

1) For ejection fraction, the best correlation with DCI was achieved by two-dimensional Simpson's method.
2) Two-dimensional Simpson's method appeared a safe and useful noninvasive method of evaluation left ventricular ejection fraction.

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