摘要
目的 :比较体感诱发电位 (SEP)和脊髓磁共振 (MRI)检查对视神经脊髓炎 (NMO)和急性横贯性脊髓炎 (ATM )病人进行定位诊断的价值。方法 :对 2 1例临床确诊为NMO和 36例ATM病人的SEP和MRI检查结果进行回顾性分析 ,比较其定位符合率。结果 :①ATM组病人MRI以胸髓损害为主 ,NMO组病人以颈胸段脊髓联合损害为主 ;②ATM组病人SEP主要表现为N2 0正常、P4 0异常 ,而NMO组病人则表现为N2 0和P4 0均异常 ;当病变位于颈髓时 ,NMO组SEP与MRI的定位符合率为94 .1% ,ATM组为 78.6 % ;当病变位于胸髓时 ,ATM组为 10 0 % ,NMO组为 6 6 .7%。结论 :在NMO和ATM病人中 。
Objective:To compare the clinical value of somatosensory evoked potential (SEP) and MRI in the topical diagnosis of neuromyelitis optica (NMO) and acute transverse myelitis (AMT). Methods:Data of SEP and MRI were analyzed retrospectively in 21 patients with neuromyelitis optica diagnosed clinically and 36 ones with acute transverse myelitis , and the localization coincidence rate of SEP and MRI was observed. Results:Patients with AMT mainly showed thoracic spinal damages , and those with NMO principally displayed combined damages in the cervical and thoracic spinal cord. Normal N20 and abnormal P40 were the mainly changes of SEP in patients with ATM . However, both N20 and P40 were found abnormal in patients with NMO. The localization coincidence rate of SEP and MRI was 94.1% in NMO group and 78.6% in ATM group as the focus was in cervical spinal cord. while it was in thoracic spinal cord, the coincidence rate in ATM group and NMO group was 100% and 66.7%, respectively. Conclusion: In patients with NMO and ATM, the abnormal site revealed by SEP might be coincident with that demonstrated by MRI.
出处
《临床神经电生理学杂志》
2004年第1期14-16,共3页
Journal of Clinical Electroneurophysiology
