Clinical application of real-time three-dimensional echocardiography for aneurysmal left ventricular function
实时三维超声心动图测量室壁瘤左心室功能的临床应用

Objective To evaluate the feasibility and accuracy of real-time three-dimensional echocardiography（RT-3DE） for aneurysmal left ventricular（LV） function. Metlmds A total of twelve anemysmal hearts was measured by RT-3DE and two-dimensional eehocardiography （2DE）. In RT-3DE ＂full volume＂ imaging, LV volume were outlined and calculated using 2,4,8-plane method with the analysis software of RT-3DE. The LV function was measured by Simpson＇s method with 2DE. The LV function by RT-3DE was compared to 2DE and left ventrieular angiography. Results The RT-3DE could show the whole shape of aneurysmal LV; There was moderate correlation between left ventricular ejection fraction（LVEF） measured by RT-3DE and 2DE（ r =0. 77, P 〈0. 01 ）. A significant correlation between LVEF measured by RT-3DE and LV angiography （r = 0. 95, P 〈 0.001 ）was observed;but LV volume with 2DE was smaller compared to those with other methods ;There were significant difference between LV volume in 2-plane and those in 4,8-plane（P 〈0. 01 ） ,but no significant difference was found between 4-plane and 8-plane（P 〉0.05）. Conclusion RT-3DE can accurately quantify aneurysmal LV volume, which could provide a new technique for evaluation of LV function.