Previous studies have demonstrated that regurgitant fraction can be measured by using the
proximal isovelocity surface area (PISA) method. For this study, we utilized this Doppler …

The present study was performed to determine the accuracy and reproducibility of
calculating the mitral regurgitant orifice area with the proximal isovelocity surface area …

Objective—To determine the within-day and between-day variability of regurgitant fraction
(RF) assessed by use of the proximal isovelocity surface area (PISA) method in awake dogs …

Background Predicting progression of myxomatous mitral valve disease (MMVD) in dogs
can be challenging. Hypothesis/Objectives The mitral regurgitation severity index (MRSI) will …

Background Reliability of echocardiographic measurements of left atrial (LA) size, an
important marker of disease severity, has not been reported in dogs with myxomatous mitral …

OBJECTIVES Echocardiography is used routinely to assess mitral regurgitation severity, but
echocardiographic measures of mitral regurgitation in dogs have not been compared with …

Objective To examine our hypothesis that changes of the mitral valve in dogs with mitral
regurgitation lead to various degrees of protrusion of the cusp in individual dogs in systole …

OBJECTIVES: This study was performed to test the hypothesis that measurements of jet area
by Doppler color flow imaging will correlate with the severity of mitral regurgitation …

Pulmonary hypertension has been associated with mitral insufficiency caused by chronic
degenerative valve disease in dogs. Our aim was to search for associations between left …

Background Describing severity of mitral regurgitation (MR) in dogs with degenerative mitral
valve disease (DMVD) is challenging. Hypothesis/Objectives Mitral regurgitant fraction (RF) …