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 …

BACKGROUND Analogous to stenotic valve area in the assessment of valvular stenosis,
regurgitant orifice area (ROA) represents a fundamental parameter to assess valvular …

Many echocardiographic signs of severe MR are clearly demonstrated, particularly when
both TEE and TTE are used. When these signs are assiduously sought, the recognition of …

Objectives. The purpose of this study was to improve three-dimensional echocardiographic
reconstruction by developing an automated mechanism for integrating spark gap locating …

Objectives. This study was designed lo examine the accuracy of proximal accelerating flow
calculations in estimating regurgitant flow rate or volume in patients with different types of …

Doppler color flow imaging is a rapid, noninvasive method to estimate the severity of mitral
regurgitation (MR) in adult patients; theoretically, it should be possible to use the technique …

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 …

Pulmonary venous flow patterns have been used to assess severity of mitral regurgitation;
however, the issue of which pulmonary veins to sample has not been determined. We …

The proximal flow convergence method of multiplying color Doppler aliasing velocity by flow
convergence surface area has yielded a new means of quantifying flow rate by …

Objectives. This study addressed the hypothesis that motion of the surface containing a
regurgitant orifice relative to the Doppler ultrasound transducer can cause differences …