立体超声心动图技术评价房间隔缺损的临床应用价值研究

目的：评价立体超声心动图技术（Stereo Echo）诊断继发孔型房间隔缺损的临床应用价值。方法：应用Stereo Echo技术观察12例继发孔型房间隔缺损患者的缺损形态、大小、空间位置及毗邻关系等。结果：12例患者均取得满意的实时三维超声图像。Stereo Echo模式能准确测定房间隔缺损的大小，普通三维显示模式和Stereo Echo测量的房间隔缺损直径未见明显差异[（2.89±0.73）cm vs （2.85±0.72）cm，P>0.05]，二者间测值显著相关（r＝0.96，P<0.05）。Stereo Echo上缺损断面显示清晰、立体，与毗邻结构的前后层次关系明显。普通显示模式和Stereo Echo对冠状静脉窦的显示率分别为93.3%（10/12），100%（12/12）；对上、下腔静脉的平均成像时间分别为（11.03±3.76）s vs （10.33±3.59）s（P>0.05）。结论：Stereo Echo能有效改善三维超声图像的清晰度，准确测量房间隔缺损大小，快速识别房间隔周邻结构，为外科微创或介入房间隔封堵术的安全、高效的进行具有重要潜在应用价值。

Clinical study of stereoscopic echocardiography in assessment of atrial septal defects

Objective:To evaluate the clinical value of stereoscopic echocardiography(Stereo Echo) in the diagnosis of se-cundum atrial septal defect(ASD).Methods:Twelve patients with secundum ASD were examined using real time 3D echocar-diography.Stereo Echo was generated with a high-performance volume renderer with stereoscopic glasses.Stereo Echo was compared with 3D echocardiography with standard display for assessment of the shape,size,and the surrounding tissues of ASD.Results:Stereo Echo could accurately measure...