PMID: 3760356Oct 1, 1986Paper

An echocardiographic technique for quantifying and displaying the extent of regional left ventricular dyssynergy

Journal of the American College of Cardiology
D E GuyerA E Weyman

Abstract

A convenient noninvasive method of mapping the left ventricular endocardial surface has been developed that can be used to display regional dysfunction and calculate the total area of abnormal endocardial excursion from data obtained in two orthogonal apical and three or more short-axis cross-sectional echocardiographic images. Visually identified regions of abnormal systolic function are plotted on end-diastolic, planar endocardial surface maps, and the extent of dysfunction can be expressed either as an absolute area or as a fraction of the total endocardial surface area involved. The extent of the left ventricular surface moving abnormally, calculated with this echocardiographic mapping technique, was compared with two histochemical measures of infarct size in a series of 11 closed chest dogs with acute circumflex coronary artery occlusions. Overall extent of abnormally moving left ventricular wall correlated closely with both the fraction of the endocardial area overlying infarct (r = 0.92, p less than or equal to 0.001) and the fraction of the myocardial volume infarcted (r = 0.86, p less than or equal to 0.001). This suggests that the echocardiographic mapping technique can be used to accurately quantify the global extent...Continue Reading

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Citations

Sep 1, 1993·International Journal of Cardiac Imaging·V G KujacicH U Emanuelsson
Mar 1, 1993·Journal of the American College of Cardiology·S M NidorfM H Picard
Dec 28, 1999·Journal of Cardiopulmonary Rehabilitation·L B CannistraG J Balady
Jan 1, 1993·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·D L KingM Y Shao
Jun 18, 1992·The American Journal of Cardiology·R A LevineM D Handschumacher

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