人工体神经-内脏神经反射弧建立术前腰骶部脊神经的MRI研究  

Magnetic resonance imaging study of lumbosacral spinal cord nerves before artificial somatic-central nervous system-autonomic reflex pathway establish ment

作　　者：邓先波[1] 孔祥泉[1] 冯敢生[1] 韩萍[1] 刘定西[1] 马辉[1] 

机构地区：[1]华中科技大学同济医学院附属协和医院放射科,武汉430022

出　　处：《中华放射学杂志》2005年第9期948-951,共4页Chinese Journal of Radiology

摘　　要：目的探讨MRI在人工体神经-内脏神经反射弧建立术前腰骶部脊神经评估的价值。方法对10例神经源性膀胱患者均采用常规MRI、稳态构成干扰序列(constructive inference in steadystate,CISS)成像,并对T2W CISS三维(3D)原始数据进行多平面重组(multiple planar reformation,MPR)。结果MRI发现,脊髓栓系综合征5例,其中1例合并脊髓血管畸形,脊神经返折走行,出硬脊膜处脊神经数目异常;脊髓损伤4例,椎管内占位病变1例,脊神经漂浮下行,神经根数目正常。结论常规MRI及T2W CISS3D检查对人工体神经-内脏神经反射弧建立术前脊神经的评估具有重要价值。MPR可以清晰的显示脊神经的走行及前后根的排列。Objective To investigate the value of MRI as imaging technique for lumbosacral spinal nerves before artificial somatic-central nervous system-autonomic reflex pathway establish ment. Methods Conventional MRI and T2W CISS 3D were performed in 10 patients with neurogenic bladder planned for the operation of artificial somatic-central nervous system-autonomic reflex pathway. The Three-dimensional data were then constructed into composite images using a standard multiple planar reformation （MPR）. Results Five patients showed tethered spinal cord syndrome, whose spinal cord nerves were circuitous distributed and had abnormity number when penetrated the dura. Of these 5 patients, one patient was accompanied by spinal cord vas malformation. Four patients had vertebral fracture and spinal injury, and the other one patients demonstrated tumor in vertebral canal on MRI examinations. The spinal cord nerves in these 5 patients floated downriver and had normal number of spinal cord nerves. Conclusion Conventional MRI and T2 W CISS 3D MRI were essential for the pre-operative planning of artificial somatic-central nervous system- autonomic reflex pathway, especially in patients with tethered spinal cord syndrome. Spinal cord nerves distribute and anterior and posterior roots array can be clearly showed by MPR.

关 键 词：脊神经 神经系统生理学 磁共振成像 人工体神经-内脏神经反射弧 常规MRI 腰骶部 术前 脊髓栓系综合征 椎管内占位病变 神经源性膀胱 

分 类 号：R445.2[医药卫生—影像医学与核医学]