Impact of impinging wall jet on color Doppler quantification of mitral regurgitation.

CG Chen, JD Thomas, J Anconina, P Harrigan… - Circulation, 1991 - Am Heart Assoc
BACKGROUND In clinical color Doppler examinations, mitral regurgitant jets are often
observed to impinge on the left atrial wall immediately beyond the mitral valve. In …

Assessment of severity of mitral regurgitation by measuring regurgitant jet width at its origin with transesophageal Doppler color flow imaging.

C Tribouilloy, WF Shen, JP Quere, JL Rey, D Choquet… - Circulation, 1992 - Am Heart Assoc
BACKGROUND The ability of transesophageal color Doppler echocardiography to provide
high-resolution images of both cardiac structure and blood flow in real time is advantageous …

Color flow imaging compared with quantitative Doppler assessment of severity of mitral regurgitation: influence of eccentricity of jet and mechanism of regurgitation

M Enriquez-Sarano, AJ Tajik, KR Bailey… - Journal of the American …, 1993 - Elsevier
Objectives. To determine the influence of jet eccentricity and mechanism of mitral
regurgitation, we examined 1) the relation between jet extent and severity of mitral …

Sources of variability for Doppler color flow mapping of regurgitant jets in an animal model of mitral regurgitation

BD Hoit, M Jones, EE Eidbo, W Elias… - Journal of the American …, 1989 - Elsevier
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 …

Proximal jet size by doppler color flow mapping predicts severityof mitral regurgitation: Clinical studies

D Mele, P Vandervoort, I Palacios, JM Rivera… - Circulation, 1995 - Am Heart Assoc
Background Recent studies have shown that many instrument and physiological factors limit
the ability of color Doppler total jet area within the receiving chamber to predict the severity …

Three-dimensional color Doppler: a clinical study in patients with mitral regurgitation

R De Simone, G Glombitza, CF Vahl, J Albers… - Journal of the American …, 1999 - jacc.org
OBJECTIVES The purpose of this study was to assess the clinical feasibility of three-
dimensional (3D) reconstruction of color Doppler signals in patients with mitral regurgitation …

Quantitative assessment of mitral regurgitation by Doppler color flow imaging: angiographic and hemodynamic correlations

MG Spain, MD Smith, PA Grayburn… - Journal of the American …, 1989 - Elsevier
This study was performed to test the hypothesis that measurements of jet area by Doppler
color flow imaging can predict the angiographic severity and hemodynamic consequences …

Observer variability in the quantitation of Doppler color flow jet areas for mitral aortic regurgitation

MD Smith, PA Grayburn, MG Spain, AN DeMaria… - Journal of the American …, 1988 - Elsevier
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 …

Color-coded Doppler imaging of the vena contracta as a basis for quantification of pure mitral regurgitation

W Fehske, H Omran, M Manz, J Köhler… - The American journal of …, 1994 - Elsevier
The narrowest central flow region of a jet is defined as the vena contracta. This term is
applied also to the contracted zone of the Doppler color flow image of a jet at its passage …

Overestimation of severity of ischemic/functional mitral regurgitation by color Doppler jet area

RB McCully, M Enriquez-Sarano, AJ Tajik… - The American journal of …, 1994 - Elsevier
Color Doppler jet analysis is widely used to characterize the degree of mitral regurgitation
(MR), but the validity of this approach in patients with ischemic or functional MR has not …