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 …

OBJECTIVES.: We attempted to determine the accuracy and pitfalls of calculating the mitral
regurgitant orifice area with the proximal isovelocity surface area method in a clinical series …

The proximal isovelocity surface area (PISA) method is accurate for quantitating mitral
regurgitation but requires recording both mitral maximal and integrated jet velocities using …

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

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 …

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 …

The proximal isovelocity surface area (PISA) color Doppler method with use of a hemielliptic
formula is reported to be accurate for quantitating regurgitant volume (RV). However, this …

Although color Doppler flow mapping has been used to quantitate the severity of mitral
regurgitation, this approach has various limitations. Doppler color flow mapping of a …

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 …

The 2-dimensional (2D) color Doppler (2D-CD) proximal isovelocity surface area (PISA)
method assumes a hemispheric flow convergence zone to estimate transvalvular flow …