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European Heart Journal 1991 12(3):352-356;
Copyright © 1991 by the European Society of Cardiology.
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© 1991 The European Society of Cardiology

Assessment of severity of aortic regurgitation by M-mode colour Doppler flow imaging

C. TRIBOUILLOY, W. F. SHEN, M. SLAMA, J. L. REY, H. DUFOSSÉ, D. CHOQUET and J. P. LESBRE

Department of Cardiology, South Hospital, University of Picardie 80000 Amiens,France

Received 21 November 1989; revised 30 April 1990; .

Correspondence: Jean-Philippe Lesbre, MD, Service de Cardiologie B, H{odot}pital Sud-BP 3009, 80030 Amiens, France.

Abstract

To assess the value of measuring the aortic regurgitant jet diameter at its origin by M-mode colour Doppler imaging, 82 patients with aortic regurgitation underwent, within 72 h of each other, colour Doppler examination and angiography. After excluding one patient without colour Doppler aortic regurgitation and five with a highly eccentric regurgitant jet, we found a close relationship between the jet diameter at its origin measured by M-mode colour Doppler and the angiographic grade of aortic regurgitation (r = 0.88). A jet diametergreater double equals 12 mm identified severe aortic regurgitation (grade III or IV) with a sensitivity of 86.4% and a specificity of 94.4%. In 38 patients, the jet diameter correlated well with the regurgitant fraction measured by a combined haemodynamic-angiographic method (r = 0.88). A jet diameter greater double equals 12 mm identified a regurgitant fraction greater double equals 40% with a sensitivity of 88.2% and a specificity of 95.2%. This study indicates that the size of the regurgitant jet diameter at its origin measured by M-mode colour Doppler provides a simple and useful measure of the severity of aortic regurgitation. It may allow differentiation between mild or moderate and severe aortic regurgitation and evaluation of regurgitant fraction.

Key Words: Aortic regurgitation • colour Doppler • angiography


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