The Value of Color Doppler Flow Convergence and Jet Parameters In Quantification of Mitral Regurgitation
- VernacularTitle:彩色多普勒血流会聚与众射流参数在二尖瓣返流定量中的价值
- Author:
Jun ZHANG
;
Yunqiu QIAN
;
Qinglin GUO
- Publication Type:Journal Article
- Keywords:
color Doppler flow imaging flow convergence jet mitral regurgitation
- From:
Chinese Journal of Ultrasonography
1995;4(5):193-197
- CountryChina
- Language:Chinese
-
Abstract:
The value of flow convergence and jet parameters in quantification of mitral regurgitation was estimated.The resultS showed that there were excellent correlations between mitral regurgitant flow convergence volume and mitral regurgitant volume,regurgitant fraction(r=0.87～0.93,P<0.0001).The correlations between jet parameters and regurgtant volume,regurgitant fraction were different,jet beginning width:r=0.88 and 0.81(P<0.0001),jet area : r=0.72 and O.50 and 0.61(P<0.05)and the ratio of jet area to left atrial area:r=0.27 and 0.29(P>0.05).The accurate rates of regurgitant flow convergence volume and jet beginning width in differentiating the grades of mitral regurgitation were 91.3～95.7%and 82.6～95.7%respectively.Mitrai regurgitant flow convergence volume is an accurate and reliable parameter in the quantification of mitral regurgitation.Jet parameters are of relative value in semiquantitation of mitral regurgitation,especially the jet beginning width.
