三叉神经出脑干段与周围血管关系的磁共振分析  

MRI Analysis of The Relationship between The Root Entry Zone of Trigminal nerve and Adjacent Vessels

作　　者：彭涛[1] 肖建明[1] 

机构地区：[1]成都大学附属医院,四川成都610081

出　　处：《现代临床医学》2012年第6期442-444,共3页Journal of Modern Clinical Medicine

摘　　要：目的:利用MRI分析探讨三叉神经出脑干段与周围血管的关系,为诊断血管压迫性三叉神经痛提供参考。方法:回顾性分析50例进行桥小脑角区磁共振扫描的病例,所有病例均进行3D-CISS序列扫描,其中22例采用了Turbo Flash序列、SPACE序列和VIBE序列(增强扫描)。分析三叉神经出脑干段与周围血管的关系类型。结果:50例患者100侧三叉神经出脑干段与周围血管的关系类型:远离占40%,可疑接触占29%,接触占31%,未观察到三叉神经受压变形或移位。关系血管以小脑上动脉最多见(78%)。结论:三叉神经与周围血管接触和可疑接触的情况在无三叉神经痛人群中并不少见,但一般无神经变形、移位。若磁共振图像上二者仅仅为接触或可疑接触,是不足以判定血管压迫就是三叉神经痛病因的。Objective：To analyse the relationship between the root entry zone of trigeminal nerve and adjacent vessels. Methods ： Analysis of the cerebellopontine angle zone MRI images of 50 cases. All patients scanned by 3D -CISS sequence, and 22 patients of them also scanned by Turbo Flash, SPACE, and VIBE sequence（contrast enhancement）. Evaluate the relationship type between the root entry zone of trigeminal nerve and adjacent vessels. Results： The type of relationship between the root entry zone of trigeminal nerve and adjacent vessels of 50 patients （100 sides） ：separate type 40% , potential contact type 29% , positive contact type 31% , and no compression type be observed. Most of responsible vessels are superior eerebellar artery. Conclusion：The potential contact type and positive contact type of the relationship between trigeminal nerve and adjacent vessels are common in patients without trigeminal neuralgia. No nerve deformed and displacement be observed in general . The potential or positive contact relationship between the nerve and vessels in MRI can not be an strong evidence to prove it is the reason of trigeminal neuralgia.

关 键 词：磁共振成像 三叉神经 血管 

分 类 号：R445.2[医药卫生—影像医学与核医学]