Turk Kardiyol Dern Ars. 1997; 25(4): 200-205
Regurgitant Flow Rate Estimation Using Doppler Color Flow Imaging in Children with Mitral Regurgitation
, Yasser ALKHATIB1
, Roberta WILLIAMS1
, Ah Lin WONG1
Several methods have been proposed for ultrasonic quantification of mitral regurgitation. A new method, Doppler color-flow mapping of a proximal isovelocity surface area (PISA) from a red-blue aliasing radius has been shown in vitro to be accurate for estimating volume flow rates . Volume flow rate (cm3/sec) can be calculated as PISA (cm2) x aliasing velocity (cm/sec). Thirtyseven patients aged from eight months to 12 years (mean: 3.1 years) were included in this study. There was a significant correlation between PISA-Doppler and catheterization results (r=0.93, p<0.0001). The ratio of Doppler color regurgitant jet area to left atrial area correlated well with the angiographic grading of mitral regurgitation (r=0.92, p<0.0001). In our opinion, the correlation between PISA and angiography was superior to area %and angiography. In conclusion, calculating mitral regurgitant flow rate from PISA provides excellent agreement with angiography and may be useful clinically in estimating the severity of valvular regurgitation.
How to cite this article
Vadide TAVLI, Yasser ALKHATIB, Roberta WILLIAMS, Ah Lin WONG. Regurgitant Flow Rate Estimation Using Doppler Color Flow Imaging in Children with Mitral Regurgitation. Turk Kardiyol Dern Ars. 1997; 25(4): 200-205