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。
Abstract
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. ⑤The 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: RT3DE long-axis plane method can more effectively and accurately measure ventricular volume, which especially has more advantages than short-axis plane method in measuring right ventricular volume.
关键词
心室 /
超声心动描记术 /
多普勒 /
彩色
Key words
Heart ventricles /
Echocardiography /
Doppler /
color
邓斌华;谢明星;王新房;周阳泱.
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[J]. 中国临床医学影像杂志. 2010, 21(5): 324-327
DENG Bin-hua;XIE Ming-xing;WANG Xin-fang;ZHOU Yang-yang.
Accuracy in measuring ventricular volume: comparison of two methods of volume data ofreal-time three-dimensional echocardiography[J]. Journal of China Clinic Medical Imaging. 2010, 21(5): 324-327
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