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European Heart Journal 1991 12(1):39-43;
Copyright © 1991 by the European Society of Cardiology.
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© 1991 The European Society of Cardiology

Determination of left ventricular inflow by pulsed Doppler echocardiography: Influence of mitral orifice area and blood velocity measurements

C. TRIBOUILLOY, M. SLAMA, W. F. SHEN, D. CHOQUET, J. DELONCA, C. MERTL, H. DUFOSSE and J. PH. LESBRE

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

Received 19 June 1989; revised 26 February 1990; .

Address for reprints: Professeur J. Ph. Lesbre, Service de Cardiologie B. Hôpital Sud, 80000 Amiens, France.

Abstract

Pulsed Doppler echocardiography was performed in 30 patients to assess the influence of mitral orifice area and velocity on the determination of mitral stroke volume and inflow. Aortic forward stroke volume and outflow were measured at the centre of the aortic annulus, and compared with mitral flow measurements calculated by three methods. Both mitral stroke volume and inflow derived from an instantaneous velocity-area method showed an excellent correlation with aortic flow measurements. The other two methods, which determined mitral stroke volume and inflow based on a mean mitral valve area and diastolic velocity integral, significantly underestimated mitral flow measurements. This study indicates that the instantaneous velocity-area method offers a reliable means for quantitating left ventricular inflow.

Key Words: Mitral flow • Doppler echocardiography


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