磁刺激运动诱发电位在脊髓型颈椎病中的诊断价值研究  

Clinical Study of Motor Evoked Potentials by Magnetic Stimulation in Cervical Spondylotic Myelopathy

作　　者：杨哲[1,2] 陈君长[1,2] 赵龙柱[1,2] 李幼芬[1,2] 王坤正[1,2] 金辽沙[1,2] 杨晓荣 杨大志[1,2] 

机构地区：[1]西安医科大学第二临床医院骨科 [2]汉中地区卫校

出　　处：《中华骨科杂志》1998年第1期10-13,共4页Chinese Journal of Orthopaedics

摘　　要：目的：采用磁刺激运动诱发电位（ＭＥＰｓ）与Ｆ波结合测定中枢运动传导时间（ＣＭＣＴ），并与体感诱发电位（ＳＥＰｓ）比较，评估该技术对脊髓型颈椎病脊髓传导功能异常的诊断价值。方法：对２０例影像学或手术证实的脊髓型颈椎病病人进行磁刺激ＭＥＰｓ与Ｆ波结合测定ＣＭＣＴ及ＳＥＰｓ的中枢感觉传导时间（ＣＳＣＴ）。并对年龄、身高匹配的２０例正常受试者进行相同的检查对比。结果：病人组ＭＥＰｓ的ＣＭＣＴ明显延长，与正常组相比差异有显著性意义（Ｐ＜０．０５），异常率为８０％，高于ＳＥＰｓ的ＣＳＣＴ异常率７０％。ＣＭＣＴ的延长与该病的受损程度相关。结论：无痛无创的磁刺激ＭＥＰｓ对脊髓型颈椎病运动下行通路受损程度可做定量判断，对该病有很大的诊断价值。bjective: The combined use of motor evoked potentials (MEPs) with F wave recording was compared with somatosensory evoked potentials(SEPs)in order to evaluate the clinical value of MEPs in diagnosis of cervical spondylotic myelopathy (CSM). Method: Magnetic stimulation of motor cortex with F wave recording was used to assess central motor conduction time (CMCT) and central somatosensory conduction time (CSCT) was evaluated by SEPs in 20 patients suffering from cervical spondylotic myelopathy. The results were compared with 20 controls. Result: The results showed that CMCT of patients with CSM was remarkably prolonged than that of controls, the abnormal rate was 80% which was higher than 70% of SEPs and that the prolongation of CMCT had a good correlation with the severe degree of myelopathy. Conclusion: The painless and noninvasive magnetic stimulation of MEPs could figure out the degree of compression of motor descending pathway and was a useful technique for the diagnosis of CSM.　　

关 键 词：颈椎病 诱发电位 诊断 MEPS 脊髓型 F波 CMCT 

分 类 号：R681.55[医药卫生—骨科学]