BTFE与e-THRIVE序列在后颅窝微血管减压术前的应用价值  

Application of balanced turbo field echo and enhanced T1 high-resolution isotropic volume excitation imaging in patients before performing microvascular decompression in the posterior cranial fossa

作　　者：曾少庆[1] 江桂华[1] 田军章[1] 

机构地区：[1]广东省第二人民医院影像科,广州510317

出　　处：《中华神经医学杂志》2012年第10期1037-1041,共5页Chinese Journal of Neuromedicine

摘　　要：目的 探讨双激发式稳态A由进动序列（BTFE）与增强T1高分辨率各向同性容积激发序列（e-HRIVE）联合应用在原发性三叉神经痛与面肌痉挛微血管减压术前MR成像中的临床应用价值。方法 回顾性分析自2009年4月至2011年12月广东省第二人民医院收治的121例神经微血管压迫患者（三叉神经痛74例，面肌痉挛47例）的影像资料，患者均采用PHILIPS公司ACHIEVA NOVA DUALA-serial 1．5T磁共振扫描仪成像，成像序列除头颅常规序列外，特别进行了BTFE序列及e-THRTVE序列成像。结果 全部患者均经微血管减压术证实。74例患者的三叉神经及47例患者的面神经全部显示清楚。121例患者中共118例（98％）找到责任微血管：74例三叉神经痛患者中有52例（70％1为小脑上动脉压迫；47例面肌痉挛患者中有29例（62％）为小脑前下动脉压迫；压迫方式多呈斜行交叉、平行及垂直交叉相贴。结论 联合应用BTFE、e-THRIVE序列可清楚显示三叉神经、面神经及后颅窝微血管，再结合空间Link功能及多平面重建技术，可以找寻到责任微血管，为三叉神经痛及面肌痉挛患者行微血管减压术提供术前影像学指导。Objective To explore the applied value of balanced turbo field echo （BTFE） Cine-MR imaging and enhanced T1 high-resolution isotropic volume excitation （e-THRIVE） imaging in patients with trigeminal neuralgia （TN） and hemifacial spasm （HFS） before performing microvascular decompression （MVD）. Methods One hundred and twenty-one patients （74 patients with TN and 47 with HFS）, admitted to our hospital from April 2009 to December 2011, were chosen in our study; a scan with ACHIEVA NOVA DUAL A-serial 1.5 T MR Machine using the BTFE and e-THRIVE serial besides conventional head MR imaging was performed on these patients. All the MR imaging data were retrospectively analyzed. Results All the patients were confirmed by microvascular decompression. The facial nerves of 74 patients with TN and 47 with HFS were displayed well. Responsible capillaries were found in 118 patients （98%）： the related vessel was superior cerebellar artery in 52 patients （70%） of 74 patients with TN and anterior inferior cerebellar artery in 29 patients （625） of 47 patients with HFS. The compression style included oblique cross, parallel or vertical compression. Conclusion BTFE MR imaging and e-THRIVE imaging can show the trigeminal nerve, facial nerve and microvascular vessel in the posterior cranial fossa clearly; combining space-link method and multiplanar reconstruction, they can help us find the related vessel and provide preoperative guidance before microvascular decompression for patients with TN and HFS.

关 键 词：二三叉神经 面神经 微血管减压术 双激发式稳态自由进动序列 增强T1高分辨率各向同性容积激发序列 

分 类 号：R745.11[医药卫生—神经病学与精神病学]