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European Heart Journal 1988 9(4):380-387;
Copyright © 1988 by the European Society of Cardiology.
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© 1988 The European Society of Cardiology

Quantitation of aortic regurgitation by colour coded cross-sectional Doppler echocardiography

H. BAUMGARTNER, H. KRATZER, G. HELMREICH and P. KÜHN

Department of Internal Medicine/Cardiology, Krankenhaus der Barmherzigen Schwestern Linz, Austria

Received 18 March 1987; revised 14 October 1987; .

Address for correspondence: H. Baumgartner, MD, Krankenhaus der Barmherzigen Schwestern, A-4010 Linz D., Langgasse 16, Austria

Abstract

In 60 patients with aortic regurgitation, angiography and cross-sectional Doppler echocardiography have been compared in order to examine the reliability of the noninvasive method in quantitating aortic regurgitation. In a parasternal short-axis view just below the aortic valve, the ratio of the cross-sectional area of the jet divided by the cross-sectional area of the left ventricular outflow tract was determined. This measurement was possible in 50 patients (83%). Grossman's classification was used as the criterion for assessing the severity of aortic regurgition by angiography. Values for the ratio of grade I ranged from 0.03 to 0.18, 110.06 to 0.29, III0.30 to 0.55, and IV 0.40 to 0.65. Assuming four Doppler grades ( <0.15, 0.15–0.29, 0.30–0.44, ≥0.45), we found complete agreement between the two methods in 42 patients (84%). In six cases there was underestimation, in two cases overestimation, by one grade only. Considering all cases, x2 analysis gave 96.6, P<0.00001, the contingency coefficient was 0.81. We conclude that, using this measurement, cross-sectional Doppler is a reliable method for the quantitative evaluation of aortic regurgitation.

Key Words: Aortic regurgitation • Doppler echocardiography • colour flow


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