成人中耳、内耳解剖结构螺旋CT三维成像  

SCT three-dimensional reconstruction of adult middle ear and inner ear

作　　者：王志铭[1] 牛玉军[1] 武克俭[1] 闫晓虹[1] 雷振[1] 刘洋[1] 张燕[1] 刘景勃[1] 

机构地区：[1]锦州医学院附属第一医院放射科,辽宁锦州121001

出　　处：《中国临床医学影像杂志》2002年第4期232-235,共4页Journal of China Clinic Medical Imaging

基　　金：辽宁省教育委员会高等学校科学研究项目(总编号:991721592)

摘　　要：目的:建立成人中耳、内耳解剖结构三维立体图像模型。方法:采用螺旋CT薄层扫描(层厚1mm或2mm),小视野(FOV=5cm)、密集重建技术(间隔0.2mm或0.5mm),对90例成人中耳、内耳进行三维成像,包括多平面重组(MPR)、最大密度投影(MIP)、表面成像(SSD)和仿真内窥镜成像(CTVE)。结果:中耳鼓室、听骨链、内耳及内耳道分别三维成像,全面显示了各结构相互关系、表面及内部形态。结论:螺旋CT三维成像能够全面准确观测成人中耳、内耳立体结构。Objective:To establish an anatomic model of adult middle ear and inner ear by using spiral CT three-dimen-sional (3D)reconstruction.Materials and Methods:The middle ear and inner ear in ninety adult cases were performed by thin slice spiral CT examination with slice thickness of 1mm or 2mm and small FOV(FOV=5cm).The reconstruction tech-niques included MPR,MIP,SSD and CT virtual endoscopy (CTVE).3D reconstruction of the tympanic cavity,auditory ossi-cles,the inner ear and internal auditory canal were performed separately.Results:The relationship of each structure and the superficial as well as internal morphology were shown clearly.Conclu sion:SCT3D reconstruction can provide a complete and accurate visualization of the adult middle and inner ear structures.

关 键 词：中耳 迷路 体层摄影术 X线计算机 螺旋CT 三维成像 成人 内耳 解剖结构 

分 类 号：R813[医药卫生—放射医学]