3D-FIESTA序列在内耳及内听道磁共振检查上的应用  

Application of 3D-FIESTA sequence of MR imaging in the inner ear and internal auditory canal

作　　者：张晨[1] 蔡葵[1] 尹晶晶[1] 李微微[1] 徐亮[1] 陈敏[1] 

机构地区：[1]卫生部北京医院放射科MRI室,北京100730

出　　处：《医学影像学杂志》2008年第4期392-394,共3页Journal of Medical Imaging

摘　　要：目的:探讨3D-FIESTA序列高分辨率影像在内听道成像技术上的应用。方法:对86例共172只内耳应用3D-FIESTA序列做颞骨的三维容积扫描,采用最大强度投影(MIP)进行后处理,观察由3D-FIESTA序列获得的高分辨率影像对内耳及内听道解剖结构及病变的显示。结果:3D-FIESTA序列扫描及MIP重建对内耳耳蜗、迷路及内听道内神经及血管显示清晰,能够清晰显示病变与周围结构的关系。结论:3D-FIESTA序列可以提供非常好的分辨率,对内耳及内听道充满水的结构及病变显示清晰,在内耳、内耳道和桥脑小脑角区具有较高的临床应用价值。Objective： The aim of this study was to evaluate the fast 3D-FIESTA acquisition pulse sequence for MR imaging of the inner ear and internal auditory canal （IAC）. Methods：3D volume scans of temporal bone was performed in 86 patients （172ears） using 3D-FIESTA sequence. The post-process analysis with maximum intensity projection （MIP） was carried out with high imaging quality of 3D-FIESTA sequence to show anatomic structures and lesions of the inner ear and IAC. Results：Scans combined with post-process using 3D-FIESTA sequence could precisely shows cochlear, labyrinth, semicircular canals of the inner ear, and the facial, superior vestibular nerve and vessels of the IAC. Conclusion：3D-FIESTA sequence can be provided very good resolution of water structures of the cochlea and lesions in the inner ear and IAC; therefore it allows for the diagnosis of the clinical application in the inner ear, IAC, and cerebellopontine angle （CPA）.

关 键 词：内耳 磁共振检查 

分 类 号：R764.3[医药卫生—耳鼻咽喉科] R445.2[医药卫生—临床医学]