摘要
目的:探讨CT仿真内镜(CTVE)显示中耳正常结构的方法,确立显示听骨链及其他中耳结构的位点和方法。方法:选择40例无耳科疾病的正常志愿者,采用德国西门子螺旋CT机Inner Ear扫描程序对正常志愿者进行轴位扫描,重建原始图像,用Fly-through软件经选择的A、B、C点入路进行CTVE成像研究。重点显示听骨链连接状态。结果:40例正常志愿者经选择的A、B、C点入路行CTVE中,锤骨、砧骨、鼓岬、面神经管水平段和外半规管隆凸显示率均为100%;圆窗、卵圆窗为90%、93%、98%,听小骨全貌为100%、95%、93%。结论:通过选择恰当的入路,CTVE在显示听小骨及其连接关系方面有相当优势。CTVE是断层影像的有力补充。
Objective:To explore the clinical application of CT virtual endoscopy (CTVE) of ossicular chain in middle ear,and to establish the accurate method of observing ossicular chain and middle ear anatomy. Method:Volume scanning with spiral CT unit was performed in forty normal cases without illness of ear. Endoscopic 3D processing was carried out on a separate workstation equipped with a flying through program. From three isolated points(A, B and C), ear drum and ossicles were observed with CTVE method. The status of auditory ossicles connection were focused. Resalt..In CTVE via A, B and C points, the indication rates of the malleus, the indus, the drum cape, the canalis facialis horizontal section, and the prominence of horizontal semicircular canals were prosperously 100%. The indication rates of round window and the fenestra ovalis were 90%, 93%, 98% via A, B and C points respectively. And the indication rates of complete demonstration of ear ossicles were 100%, 95 %, 93 %, respectively. Conclusion: With appropriate approach, CTVE has advantage of showing ear ossicles and their connections, which is a good supplement of routine CT.
出处
《临床耳鼻咽喉科杂志》
CSCD
北大核心
2006年第16期732-734,共3页
Journal of Clinical Otorhinolaryngology
关键词
体层摄影术
X线计算机
CT仿真内镜
成像
三维
听小骨
Tomography, X-ray computed
CT virtual endoscopy
Imaging, three-dimensional
Ear ossicles