三维彩色多普勒超声对正常人左室不同水平切面的流量研究  

Quantification of the stroke volume in different levels of left ventricle by three-dimensional color Doppler imaging

作　　者：孙鲲[1] 王新房[1] 邢晋放[1] 谢明星[1] 吕清[1] 卢小芳[1] 黄润清[1] 

机构地区：[1]华中科技大学同济医学院附属协和医院超声科,武汉430022

出　　处：《中华超声影像学杂志》2002年第2期69-71,共3页Chinese Journal of Ultrasonography

摘　　要：目的　了解三维彩色多普勒超声在正常人心搏出量计算方面的准确性及其应用价值。方法　运用三维彩色多普勒超声对 30例正常人二尖瓣口、主动脉瓣口及主动脉瓣下 1cm处的流量分别进行测量 ,并将所得数据作统计学分析。结果　主动脉瓣口心搏出量为 ( 4 5 .8± 4.1)ml ,主动脉瓣下 1cm处心搏出量为 ( 5 0 .9±5 .3)ml,二尖瓣口搏出量为 ( 5 2 .0± 6 .1)ml。Keuls检验示二尖瓣口搏出量与主动脉瓣口搏出量数值差异有显著性意义 ( P <0 .0 1) ,与主动脉瓣下搏出量数值差别无显著性意义 ;主动脉瓣下搏出量数值与主动脉瓣口数值差异有显著性意义 (P <0 .0 1)。结论　三维彩色多普勒超声在理论上不受心室形态及运动状况的影响 ,可准确、简便地计算左室二尖瓣口及主动脉瓣下的流量 ,及时反映左室收缩及舒张功能的变化。Objective To evaluate the accuracy and application of three dimensional(3D) color Doppler imaging in normal subjects cardiac function quantification.Methods In 30 normal person stroke volumes(SV) in three different levels of left ventricles,including levels of aortic valve,1 cm below aortic valve and mitral valve,were measured by 3D color Doppler imaging.Results Stroke volumes through aortic valve,1 cm below aortic valve and mitral valve were ( 45.8 ± 4.1 )ml,( 50.9 ± 5.3 )ml and ( 52.0 ± 6.1 )ml respectively.Student Newman Keuls test showed there were good correlations in SV measurements of mitral valve level and below aortic valve level but significant differences among the measurements of aortic valve level and the other two levels.Conclusions 3D color Doppler imaging can provide cross sectional flow rates regardless of geometric and hemodynamic changes in left ventricle.It can evaluate left ventricular systolic and diastolic function exactly and conveniently.

关 键 词：超声心动描记术 每搏输出量 左心室功能 正常人 不同水平切面 三维彩色多普勒超声 流量计算 

分 类 号：R445.1[医药卫生—影像医学与核医学]