实时三维超声心动图在儿童继发孔型房间隔缺损封堵治疗中的应用研究

目的探讨经胸实时三维超声心动图评价小儿继发孔型房间隔缺损结构和封堵术后封堵器形态的临床应用价值。方法儿童继发孔型房间隔缺损患者10例，Amplatzer封堵器封堵术后患者9例。以Philips Sonos7500型超声仪，经胸分别以Live 3D和Full-Volume模式进行实时三维显示和重建。结果经胸Live 3D模式实时三维显示图像清晰，从不同的角度实时显示房间隔缺损和封堵器的三维结构。Full-Volume模式图像采集快速，重建图像清晰，所有图像均清晰显示房间隔缺损的大小、位置、周边残端结构和周边毗邻的解剖结构。结论经胸实时三维超声心动图清晰显示儿童房问隔缺损结构和封堵器的形态，对ASD封堵治疗具有重要的临床意义。

Applicational study of real-time three-dimensional echocardiography in closure of secundum atrial septal defect using Amplatzer septal occluder in children patients

Objective To estimate the feasibility and efficacy of real time three dimensional echocardiography(RT 3DE) in closure of secundum atrial septal defect(ASD) using Amplatzer septal occluder(ASO) in children.Methods Ten children patients with ASD and 9 children patients post closure using Amplatzer septal occluder were examined by transthoracic RT 3DE (Live 3D mode and Full Volume mode).Results The three dimensional view of ASD and ASO was displayed clearly by RT 3DE,including size,shape,position and spatial relations of ASD and ASO.Conclusions ASD and ASO could be evaluated quickly and accurately by RT 3DE,which has great value in closure of ASD.