3．0 TMR三维双回波稳态水激发序列在面神经成像的应用价值  

Three-dimensional double echo steady state with water excitation MR imaging of facial nerve at 3.0T： a preliminary application value study

作　　者：周宙[1] 朱进[1] 易芹芹[1] 徐坚民[1] 

机构地区：[1]暨南大学第二临床医学院深圳市人民医院放射科,广东深圳518000

出　　处：《实用放射学杂志》2016年第6期860-862,866,共4页Journal of Practical Radiology

摘　　要：目的 探讨三维双回波稳态水激发（3D-DESSwe） 序列在面神经成像中的临床应用价值。方法 采用3.0T MR 3D-DESSwe序列对18例健康志愿者行面神经扫描, 对原始图像行多平面重组（MPR）及薄层最大密度投影（MIP）重建, 观察并参照格氏解剖学图谱对图像进行评价分析，由2位阅片者采用5分法（1~5分,由高到低）对图像质量和面神经显示情况进行评估。结果 所有志愿者顺利完成扫描，双侧面神经全程均获得显示, 面神经与周围组织结构对比明显, 所得图像评分16个1分，2个2分，并显示颅外段（腮腺段面神经）分支。结论 3D-DESSwe序列可以清晰显示面神经全长, 并可显示颅外段分支。Objective To assess the clinical value of three-dimensional double echo steady state with water excitation （3DDESSwe） MR sequence in depicting the normal anatomy of facial nerve. Methods 3D-DESSwe MR sequence was performed in 18 healthy volunteers on a 3.0T MR. All original imagies were treated through multiplanar reconstruction （MPR） and thin slice maximum intensity projection （MIP）. Then the processed images obtained in the previous step were observed and evaluated in Gray＇s Anatomy as a standard. Lastly, two radiologists analyzed the quality of the MR images and the situation of bilateral facial nerve by using a Five-score system. Results All volunteers successfully accomplished the scanning. Bilateral facial nerve of all subjects were displayed distinctly, which were also obviously distinguished from the adjacent structures, covering the extracranial branches （intraparotid segment of facial nerve）. Conclusion 3D-DESSwe MR sequence can display the whole course of a normal facial nerve, including extracranial branches （intraparotid segment of facial nerve）.

关 键 词：磁共振成像 面神经 三维双回波稳态水激发 

分 类 号：R445.2[医药卫生—影像医学与核医学] R322.8[医药卫生—诊断学]