Grading of mitral regurgitation by quantitative Doppler echocardiography: calibration by left ventricular angiography in routine clinical practice
KS Dujardin, M Enriquez-Sarano, KR Bailey… - Circulation, 1997 - Am Heart Assoc
Background Quantitative Doppler echocardiography and proximal flow convergence
methods are validated techniques for quantifying mitral regurgitation. However, the clinical …
methods are validated techniques for quantifying mitral regurgitation. However, the clinical …
Which physical factors determine tricuspid regurgitation jet area in the clinical setting?
JM Rivera, PM Vandervoort, JAV de Prada… - The American journal of …, 1993 - Elsevier
The visual assessment of jet area has become the most common method used in daily
clinical practice to evaluate valvular regurgitation. Despite the high prevalence of tricuspid …
clinical practice to evaluate valvular regurgitation. Despite the high prevalence of tricuspid …
A new method for quantification of regurgitant flow rate using color Doppler flow imaging of the flow convergence region proximal to a discrete orifice. An in vitro study.
F Recusani, GS Bargiggia, AP Yoganathan, A Raisaro… - Circulation, 1991 - Am Heart Assoc
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 …
visualizing the turbulent jets generated in valvular insufficiency, quantification of the degree …
Three-dimensional ultrasound imaging model of mitral valve regurgitation: design and evaluation
We describe the development of a cardiac flow model and imaging chamber to permit
Doppler assessment of complex and dynamic flow events. The model development included …
Doppler assessment of complex and dynamic flow events. The model development included …
Two-dimensional color Doppler estimation of the severity of atrioventricular valve regurgitation: important effects of instrument gain setting, pulse repetition frequency …
JG Stevenson - Journal of the American Society of Echocardiography, 1989 - Elsevier
Literature reports of good correlation between two-dimensional color Doppler and
ventriculography for estimation of the severity of atrioventricular valve regurgitation have …
ventriculography for estimation of the severity of atrioventricular valve regurgitation have …
A new method for noninvasive quantification of valvular regurgitation based on conservation of momentum. In vitro validation.
EG Cape, EG Skoufis, AE Weyman, AP Yoganathan… - Circulation, 1989 - Am Heart Assoc
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 …
fundamental inequality of jet volume and regurgitant volume and by the dependence of jet …
A Three-Dimensional Computational Fluid Dynamics Model of Regurgitant Mitral Valve Flow: Validation Against In Vitro Standards and 3D Color Doppler Methods
Abstract 3D color Doppler echocardiography has recently been employed to evaluate 3D
proximal isovelocity surface area (PISA) and vena contracta (VC) area measures of …
proximal isovelocity surface area (PISA) and vena contracta (VC) area measures of …
Vena contracta imaged by Doppler color flow mapping predicts the severity of eccentric mitral regurgitation better than color jet area: a chronic animal study
X Zhou, M Jones, T Shiota, I Yamada, D Teien… - Journal of the American …, 1997 - jacc.org
Objectives. This study sought to evaluate the relation between the color Doppler-imaged
vena contracta and the severity of mitral regurgitation (MR) in a chronic animal model of MR …
vena contracta and the severity of mitral regurgitation (MR) in a chronic animal model of MR …
Effect of heart rate on centerline velocities of pulsatile intracardiac jets: an in vitro study with laser Doppler anemometry and pulsed Doppler ultrasound
A Cagniot, EG Cape, PG Walker… - Journal of the American …, 1992 - Elsevier
This article confirms a recently developed distal jet centerline technique for noninvasively
quantifying regurgitant cardiac valve flows. The basic principle that allows flow rate to be …
quantifying regurgitant cardiac valve flows. The basic principle that allows flow rate to be …
Direct measurement of proximal isovelocity surface area by single-beat three-dimensional color Doppler echocardiography in mitral regurgitation: a validation study
JA de Agustín, P Marcos-Alberca… - Journal of the American …, 2012 - Elsevier
BACKGROUND: The two-dimensional (2D) proximal isovelocity surface area (PISA) method
has some technical limitations, mainly the geometric assumptions of PISA shape required to …
has some technical limitations, mainly the geometric assumptions of PISA shape required to …