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

Clinical study of stereoscopic echocardiography in assessment of atrial septal defects

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)cmvs(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)svs(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。

Objective： To evaluate the clinical value of stereoscopic echocardiography （Stereo Echo） in the diagnosis of secundum atrial septal defect （ASD）. Methods： Twelve patients with secundum ASD were examined using real time 3D eehocardiography. 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 the diameter of ASD, there was no significant difference between stereoscopic vision display and standard display[（2.89±0.73）cm vs （2.85±0.72）Cnl, P〉0.05]. The appearance rate of coronary sinus for Stereo Echo is higher compared with the standard display （100% vs 93.3%）. The mean time of the IVC, SVC for Stereo Echo was slightly shorter than those of the standard display[（10.33±3.59）s vs （11.03±3.76）s, P〉0.05]. Conclusions： Stereo Echo improved the visualization of 3D echocardiography ultrasound images, potentially improving the safety of the surgical interventions.