Evaluation of eccentric aortic regurgitation by color Doppler jet and color Doppler-imaged vena contracta measurements: an animal study of quantified aortic regurgitation.
Evaluation of eccentric aortic regurgitation by color Doppler jet and color Doppler-imaged vena contracta measurements: an animal study of quantified aortic regurgitation.
复制标题
通过彩色多普勒喷射和彩色多普勒成像收缩静脉测量评估偏心主动脉瓣关闭不全：量化主动脉瓣关闭不全的动物研究。
DOI：
10.1016/s0002-8703(96)90314-2
复制
发表时间：
1996
影响因子：
4.8
通讯作者：
Sahn,DJ
中科院分区：
文献类型：
--
作者：
Ishii,M;Jones,M;Shiota,T;Heinrich,R;Yamada,I;Sinclair,B;Yoganathan,AP;Sahn,DJ
为了评估彩色多普勒成像的收缩静脉（流加速场中任何部分的最小流直径）的彩色多普勒射流面积、射流长度和宽度测量作为量化主动脉反流（AR）方法的实用性，研究了8只手术诱导的AR羊。AR量化为峰值和平均反流速率、反流行程体积和反流分数，由肺动脉和主动脉电磁流量探头和流量计相互平衡测定。对最大颜色射流面积、射流长度与流量计数据进行简单线性回归分析，结果显示相关性较好（射流面积：0.42≤r≤0.57,SEE = 2.85 cm2；射流长度：0.42≤r≤0.59,SEE = 1.23 cm）。相比之下，彩色多普勒成像静脉收缩宽度在电磁流量计方法的基础上更能反映AR的严重程度（0.73≤r≤0.90,SEE = 0.15 cm）。因此，彩色多普勒射流长度和射流面积方法在确定AR方面的应用有限，而彩色多普勒成像的静脉收缩宽度可用于量化AR的严重程度。
To evaluate the utility of measurements of the color Doppler jet area, jet length, and width of the color Doppler—imaged vena contracta (the smallest flow diameter in any part of the flow acceleration field) as methods for quantifying aortic regurgitation (AR), eight sheep with surgically induced AR were studied. AR was quantified as peak and mean regurgitant flow rates, regurgitant stroke volumes, and regurgitant fractions as determined with pulmonary and aortic electromagnetic flow probes and flowmeters balanced against each other. Simple linear regression analysis between the maximal color jet areas, jet length, and flowmeter data showed only moderately good correlation (jet area: 0.42 ≤ r ≤ 0.57, SEE = 2.85 cm2; jet length: 0.42 ≤ r ≤ 0.59, SEE = 1.23 cm). In contrast, the width of color Doppler—imaged vena contracta was a better indicator of the severity of AR on the basis of the electromagnetic flowmeter methods (0.73 ≤ r ≤ 0.90, SEE = 0.15 cm). Therefore the color Doppler jet length and jet area methods have limited use for determining AR, whereas the width of the color Doppler—imaged vena contracta can be used for quantifying the severity of AR.