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European Heart Journal 1981 2(4):339-344;
Copyright © 1981 by the European Society of Cardiology.
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© 1981, by The European Society Of Cardiology

Left ventricular volumes and ejection fraction by single plane two-dimensional apex echocardiography

G. KAN, C. A. VISSER, K. I. LIE and D. DURRER

Department of Cardiology and Clinical Physiology, Wilhelmina Gasthuis, University of Amsterdam and the Interuniversity Cardiological Institute, I Helmersstratt 104 1054 EG Amsterdam, The Netherlands

Received 2 December 1980; revised 26 February 1981; .

Dr G. Kan, Department of Cardiology and Clinical Physiology, withelmina Gasthuis, University of Amsterdam, le Helmersstratt 104 and the Interuniversity Cardiological Institute, 1054 EG Amsterdam, The Netherlands

Abstract

Left ventricular end-diastolic and end-systolic volumes and ejection fraction were calculated by means of single plane two-dimensional apex echocardiography (echo) in 34 consecutive patients undergoing left ventricular cine-angiography (angio). Adequate echocardiographic studies could be obtained in 30 patients. Of these 10 were normal, 10 had valvular heart disease and 10 coronary artery disease. We consistently used the right anterior oblique equivalent view because of its comparability with the cine-angiographic right anterior oblique projection. Stop frames from the tape-recorded two-dimensional echocardiograms were processed with the same computer programme already in use for cine-angiographic measurements.Good correlations were found between echo and angio for end-diastolic and end-systolic volume index (r=0.84 and r=0.85, respectively) and for ejection fraction (r = 0.91). Thus two-dimensional apex echocardiography using the right anterior oblique equivalent view offers a simple non-invasive means of calculating left ventricular volumes and ejection fraction

Key Words: Left ventricular function • ejection fraction • echocardiography.


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