摘要
目的:对健康个体进行经颅电刺激咀嚼肌诱发电位的研究,建立评估皮质脑干束的检查方法。方法:对56名健康志愿者进行经颅电刺激,在双侧咀嚼肌同时接受,分别记录同侧的根运动诱发电位(rootmotorevokedpotential,R-MEP)和对侧的皮层运动诱发电位(corticalmotorevokedpotential,C-MEP)的潜伏期、波幅。结果:R-MEP的潜伏期为(3.55±0.44)ms,波幅为(3.49±2.73)mV;C-MEP的潜期为(5.83±1.40)ms,波幅为(563.84±525.07)μV。C-MEP的潜伏期与年龄无明显相关性(P>0.1)。结论:C-MEP是一种非创伤性评估皮质脑干束的检测方法。
OBJECTIVE:To develop a method for testing function of corticobulbar tract by s tudying the transcranial masticatory evoked potential in healthy subjects. METHODS:Transcranial electrical stimulation has been performed on 56 healthy s ubjects. Latency and amplitude of root motor evoked potential(R-MEP) and contra lateral cortical motor evoked potential(C-MEP) have been recorded from the ipsi lateral and contralateral masticatory muscles. RESULTS:Latency and amplitude of R-MEP was(3.55±0.44) ms and (3.49±2.73) mV respectively, while latency and amplitude of C-MEP was (5.83±1.40) ms and (56 3.84±525.07) mV. The latency of C-MEP was not related to age (P > 0.05). CONCLUSION: C-MEP can be used as a non-invasive test for assessment of corti cobulbar tract function.
出处
《中国临床康复》
CSCD
2004年第13期2576-2577,共2页
Chinese Journal of Clinical Rehabilitation
