Background—The aim of this study is to explore the differential effect of 3-dimensional color
Doppler echocardiography for the quantification of mitral regurgitation (MR). Two …

BACKGROUND Imaging of the flow convergence region (FCR) proximal to a regurgitant
orifice has been shown to provide a method for quantifying the regurgitant flow rate …

Regurgitant jet dimensions imaged by color Doppler flow mapping have been used to
evaluate the severity of valvular insufficiency in clinical studies. To study the effect of …

Previous investigations have shown that the size of a regurgitant jet as assessed by color
Doppler flow mapping is independently affected by the flow rate and velocity (or driving …

Major clinical uses of the new Doppler color flow mapping technologies involve the imaging
of disturbed flow through cardiac defects or valves. Nevertheless, there is little general …

The correlation between data obtained by Doppler color flow imaging and angiographic
severity has been investigated in mitral and aortic regurgitation. However, similar studies …

OBJECTIVES.: The purpose of this study was to develop a rational and objective method for
selecting a region in the proximal flow field where the hemispheric formula for calculating …

Epicardial and transesophageal color Doppler echocardiography are both widely used for
the intraoperative assessment of mitral regurgitation (MR); however, it has not been …

In vitro and in vivo studies suggest that proximal aortic regurgitant jet width on Doppler color
flow mapping predicts severity of aortic regurgitation. The influence of aortic valve …

Objectives. This study was designed to assess the accuracy of two-dimensional and Doppler
echocardiography in determining the mechanism of mitral regurgitation, as compared with …