实时三维超声心动图容积数据长轴平面法与短轴平面法测量心室容积准确性的对比研究  

Accuracy in measuring ventricular volume:comparison of two methods of volume data of real-time three-dimensional echocardiography

作　　者：邓斌华[1] 谢明星[2] 王新房[2] 周阳泱[2] 

机构地区：[1]湖南省郴州市第一人民医院中心医院超声科,湖南郴州423000 [2]华中科技大学同济医学院附属协和医院,湖北武汉430022

出　　处：《中国临床医学影像杂志》2010年第5期324-327,共4页Journal of China Clinic Medical Imaging

摘　　要：目的:比较实时三维超声心动图容积数据(VD-RT3DE)长轴平面法与短轴平面法测量心室容积的准确性。方法:应用RT3DE获取17例健康体检者和24例左室重构患者左、右心室的三维容积数据,存贮行脱机处理。容积分析软件中,分别选用心尖长轴平面法和短轴平面法,勾画心室内膜测量左室舒张末期容积(LVEDV)和右室舒张末期容积(RVEDV),同时记录勾画内膜时间。超声容积测值分别与多层螺旋CT(MSCT)的测量结果进行对照分析。结果:①VD-RT3DE长轴平面法和短轴平面法所获LVEDV、RVEDV测值与MSCT测值均具有好的相关性(P<0.05)。②正常组长轴平面法LVEDV测值与MSCT测值相关性稍高于短轴平面法,r值分别为0.975,0.960;左室重构组r值分别为0.925,0.904。③正常组长轴平面法RVEDV测值与MSCT测值的相关性要明显高于短轴平面法,r值分别为0.933,0.797;左室重构组r值分别为0.908,0.753。④左室重构组长轴平面法和短轴平面法的心室容积测值均大于正常组,相关性均低于正常组。⑤长轴平面法勾画左、右心室内膜所用时间均少于短轴平面法,差异有统计学意义(P<0.001);相同测量方法下,勾画左心室内膜时间明显少于右心室(P<0.001)。结论:VD-RT3DE长轴平面法较短轴平面法更为高效地准确测量心室容积,测量右心室容积时优势更为明显。Objective：To compare the accuracy of measuring the ventricular volume between long-axis plane method and short-axis plane method in real-time three-dimensional echocardiography（VD-RT3DE）.Methods：RT3DE was performed in 17 healthy individuals and 24 patients with left ventricular remodeling.Left ventricular end-diastolic volume（LVEDV） and right ventricular end-diastolic volume（RVEDV） were measured off-line by volume-analyzing software long-axis plane method and short-axis plane method and the time of endocardial boundary tracing was calculated as well.LVEDV and RVEDV were compared with values of multi-slice computed tomography（MSCT） respectively.Results：①Values of LVEDV and RVEDV by long-axis plane method and short-axis plane method both had good correlation with MSCT（P〈0.05）.②The correlations between values of long-axis plane method and MSCT in measuring LVEDV were slightly higher than that of short-axis plane method.In normal group,correlation values of long-axis plane method and short-axis plane method were 0.975,and 0.960 respectively;the correlation values in left ventricular remodeling group were 0.925,and 0.904 respectively.③The correlations between the values of long-axis plane method and MSCT in measuring RVEDV were apparently higher than that of short-axis plane method.In normal group,correlation values of long-axis plane method and short-axis plane method were 0.933,and 0.797 respectively;in left ventricular remodeling group,the correlation values of long-axis plane method and short-axis plane method were 0.908,and 0.753 respectively.④The ventricular volume by the same method in left ventricular remodeling group were higher than that of normal group（P〈0.001）,the correlations in left ventricular remodeling group were lower than that of normal group.⑤ The time of endocardial boundary tracing by long-axis plane method was shorter than that of short-axis plane method and there was extremely significant difference between the two methods（P 〈0.001）.Conclusions�

关 键 词：心室 超声心动描记术 多普勒 彩色 

分 类 号：R541[医药卫生—心血管疾病] R540.45[医药卫生—内科学]