实时三维超声评价左室收缩功能的研究

目的探讨应用RT-3DE半自动边界检测法和双平面Simpson法评价左室收缩功能的相关性。方法应用RT-3DE半自动边界检测法和双平面Simpson法测量30例正常形态左室LVEDV、LVESV、LVSV及LVEF。结果两种方法LVEDV、LVESV、LVSV、LVEF的测量值之间相关性良好,r值分别为0.8910,0.9419,0.8394,0.9166,但LVEDV、LVESV、LVSV测值差异有极显著意义（P均〈0.001）,半自动边界检测法要较双平面Simpson法偏小,LVEF测值间无差异（P〉0.05）。结论RT-3DE半自动边界检测法和双平面Simpson法评价正常形态左室收缩功能,二者之间相关性良好。

The study of real-time three-dimensional echocardiograpby on quantifying left ventricular systolic function

Objective To evaluate the application and correlation of semi-automated border detection method and Simpson s method of real-time three-dimensional echocardiography（RT-3DE）in quantifying left ventricular systolic function.Methods 30 healthy volunteers without cardiovascular diseases were investigated.Left ventricular end-diastolic volume（LVEDV）,end-systolic volume（LVESV）,stroke volume（LVSV）and ejection fraction（LVEF） were obtained by semi-automated border detection method and Simpson s method of RT-3DE.The correlation of the measured results of two methods was analyzed.Results There was excellent correlation between two methods for LVEDV,LVESV,LVSV and LVEF （r=-0.8910,0.9419,0.8394,0.9166）.The results of LVEDV,LVESV and LVSV of semi-automated border detection method were significantly less than that of Simpson＇s method （P〈0.001 ）.There was no statistically significant difference between two methods for LVEF （P〉0.05）.Conclusion There are excellent correlation between semi-automated border detection method and Simpson＇s method of real-time three-dimensional echocardiography in quantifying left ventricular systolic function.