While color Doppler flow mapping has yielded a quick and relatively sensitive method for
visualizing the turbulent jets generated in valvular insufficiency, quantification of the degree …

Analysis of velocity acceleration proximal to a regurgitant valve has been proposed as a
method to quantify the regurgitant flow rate (Qo). Previous work has assumed inviscid flow …

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 …

Early studies using Doppler color flow imaging have suggested that measurement of the
regurgitant jet area provides information regarding the severity of valvular insufficiency. This …

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 …

The noninvasive Doppler assessment of regurgitant volume from jet size is limited by the
fundamental inequality of jet volume and regurgitant volume and by the dependence of jet …

To determine whether Doppler color flow mapping could be used to quantify changing levels
of regurgitant flow and define the technical variables that influence the size of color flow …

The spatial distribution of simulated regurgitant jets imaged by Doppler color flow mapping
was evaluated under constant flow and pulsatile flow conditions. Jets were simulated …

Combined echocardiography and Doppler color flow mapping from transthoracic imaging
windows has become the standard method for the noninvasive assessment of valvular …

T he recognition, quantification, and follow-up of valvular regurgitation is a long-standing
clinical problem. While many ways to eval-uate the severity of valvular insufficiency have …