Aims: The analysis of the mitral regurgitation using the proximal isovelocity surface area
method has not been extended to clinical practice because of its complexity. Our objective …

To determine the clinical value of several parameters derived by application of the proximal
isovelocity surface area method in the assessment of mitral regurgitation (MR), 28 …

Background Clinical application of the color Doppler proximal isovelocity surface area
(PISA) method to quantify mitral regurgitation (MR) has been limited by the often inaccurate …

Methods In the PISA method, maximum regurgitant flow (MRF) is a function of the radius and
aliasing velocity (AV). Using this relationship, it is possible to construct a nomogram formed …

Despite a small army of quantitative metrics, the accurate and reproducible assessment of
mitral regurgitation (MR) severity can be a challenge for any echocardiographer. The …

Objective: To investigate the usefulness of the color Doppler proximal isovelocity surface
area (PISA) method, compared with the jet area method, in determining the severity of mitral …

Background Doppler echocardiographic methods, such as the proximal isovelocity surface
area (PISA) method, are used to quantify mitral regurgitations (MRs). However, their …

Background Overestimation of the severity of mitral regurgitation (MR) by the proximal
isovelocity surface area (PISA) method has been reported. We sought to test whether angle …

In vitro studies have demonstrated that regurgitant flow rate can be estimated by the color
Doppler “proximal isovelocity surface area”(PISA) method. By applying the PISA method and …

Objectives: The aim of this study was to evaluate the interobserver agreement of proximal
isovelocity surface area (PISA) and vena contracta (VC) for differentiating severe from …