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 …

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 …

Three-dimensional color Doppler: a new approach for quantitative assessment of mitral regurgitant jets

R De Simone, G Glombitza, CF Vahl, J Albers… - Journal of the American …, 1999 - Elsevier
Color Doppler echocardiography does not provide adequate information about the severity
of mitral regurgitation in patients with eccentric mitral regurgitation. We have developed a …

Doppler color flow mapping of simulated in vitro regurgitant jets: evaluation of the effects of orifice size and hemodynamic variables

IA Simpson, LM Valdes-Cruz, DJ Sahn, A Murillo… - Journal of the American …, 1989 - Elsevier
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 …

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 …

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 …

Variability in the quantitation of mitral regurgitation by Doppler color flow mapping: comparison of transthoracic and transesophageal studies

R Castello, P Lenzen, F Aguirre, A Labovitz - Journal of the American …, 1992 - Elsevier
Objectives. This study was designed to assess the most accurate and reproducible methods
to quantitate mitral regurgitation by color flow trarasthoracic and transesophageal …

Color Doppler regurgitant jet area for evaluating eccenteric mitral regurgitation: An animal study with quantified mitral regurgitation

T Shiota, M Jones, D Teien, I Yamada… - Journal of the American …, 1994 - Elsevier
Objectives. The purpose of the present study was to rigorously evaluate the accuracy of the
color Doppler jet area planimetry method for quantifying chronic mitral regurgitation …

Temporal variability of color Doppler jet areas in patients with mitral and aortic regurgitation

MD Smith, OL Kwan, MG Spain, AN DeMaria - American Heart Journal, 1992 - Elsevier
The temporal variability of color flow jets during regurgitation has not been systematically
examined. We therefore analyzed color Doppler images in 52 patients (29 with mitral …

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 …