[先天性外耳道闭锁中耳听骨链的虚拟内镜观察]
[Virtual endoscopy view of ossicular chain in the congenital aural atresia].
作者信息
Jiang Lixin, Ma Yukun
机构信息
Department of Otorhinolaryngology, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, China.
出版信息
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2007 Apr;21(7):301-3.
OBJECTIVE
To investigate the function of virtual endoscopy in assessing ossicular chain deformity in the congenital ear malformation.
METHOD
In 23 cases 28 ears with congenital atresia of external auditory meatus. A high resolution spiral CT is used to display the temporal bone by axial and direct coronal planes. Perspective virtual endoscopy was processed using the virtual endoscopy software. To compare the views of the operative exploration and the virtual endoscopy then draw the responding conclusions.
RESULT
Twenty-eight ears with congenital microtia were showed ossicular deformity in 25 ears, while flache pauke in 3 ears. Twenty-four ears treated by canaloplasty of external auditory meatus and tympanoplasty, hammer and incus hypoplasia in 19 ears, stapes abnormity were demonstrated in 11 ears, ossicles absence in 3 ears, vestibular window clausura in 1 ears. The coincidence between Virtual endoscopy and operating view were 100% in cases with congenital ear deformity.
CONCLUSION
Virtual endoscopy can provide reliable information on the ossicles pathological conditions in congenital congenital aural atresia.
目的
探讨虚拟内镜在评估先天性耳畸形听骨链畸形中的作用。
方法
对23例28耳先天性外耳道闭锁患者，采用高分辨率螺旋CT行颞骨轴位及直接冠状位扫描，利用虚拟内镜软件进行仿真内镜处理，将其观察结果与手术探查所见进行对照分析并得出相应结论。
结果
28耳先天性小耳畸形中，25耳存在听骨链畸形，3耳听骨链轻度异常。24耳行外耳道成形及鼓室成形术，术中见锤骨、砧骨发育不良19耳，镫骨异常11耳，听小骨缺如3耳，前庭窗闭锁1耳。先天性耳畸形病例中虚拟内镜与手术所见符合率达100%。
结论
虚拟内镜可为先天性外耳道闭锁听骨链病变提供可靠的信息。
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