虚拟耳镜在先天性外耳道闭锁术前评估中的价值  

Virtual endoscopy evaluation of congenital aural atresia

作　　者：陈东野[1] 陈晓巍[1] 王沄[2] 金征宇[2] 

机构地区：[1]中国协和医科大学中国医学科学院北京协和医院耳鼻咽喉科,北京100730 [2]北京协和医院放射科

出　　处：《临床耳鼻咽喉头颈外科杂志》2007年第7期318-320,共3页Journal of Clinical Otorhinolaryngology Head And Neck Surgery

基　　金：国家自然科学基金资助项目(No:30271401)

摘　　要：目的:探讨虚拟耳镜在先天性外耳道闭锁术前评估中的价值。方法:选取20例先天性外耳道闭锁患者行颞骨薄层CT检查,其中8例接受外耳道成形术、鼓室成形术。螺旋CT获取原始图像数据,经软件三维重建后,以虚拟耳镜方式观察中耳等结构。结果:虚拟耳镜能够清晰显示镫骨、锤砧复合体、面神经(仅限鼓室段)、砧镫关节、圆窗龛及中耳腔等结构,与手术探查结果的符合率分别为87.5%、100.0%、100.0%、75.0%、100.0%和100.0%。结论:虚拟耳镜有助于先天性外耳道闭锁的术前评估,使手术方案达到个体化。Objective： To value the virtual endoscopic visualization for preoperative assessment of congenital aural atresia. Method：Twenty patients with congenital aural atresia underwent a hlgh-resolutlon CT of the temporal bone with rE, 8 patients subsequently underwent congenital aural atresiaplasty. CT examinations of the temporal bone were carried out using spiral equipment and endoscopic 3D processing was carried out on a separate workstation equipped with a flying through program. Result： VE is valuable for the evaluation of stapes, malleus-incus complex, facial nerve （only the tympanic portion）, incus-stapes joint, round window niche, middle er space, the VE assessment matchs the operation exploration perfectly, colncidance rates were 87. 5%, 100%, 100%, 75 %, 100% and 100% respectively. Conclusion： This image processing method can be used pre-operatively for assessment, the individual planning, and simulation.

关 键 词：外耳道闭锁 先天性 外耳道成形术 体层摄影术 X线计算机 

分 类 号：R764[医药卫生—耳鼻咽喉科]