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上肢运动诱发电位研究 被引量:1

Motor evoked potentials of upper limbs
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摘要 目的 :上肢运动神经诱发电位 (MEP)记录及分析方法。方法 :采用电磁刺激技术跨颅刺激大脑皮质运动区( Cz)及颈脊髓神经根( C7),在拇短展肌 (APB)及小指展肌 (ADM)肌腹处记录复合肌肉动作电位( CMAP)。结果:健康人 MEP正常值: Cz- APB潜伏期左右两侧分别为 25.23ms和 25.19ms,两侧潜伏期差为 2.24ms,两侧波幅比和面积比分别为 0.45和 0.37。 C7- APB潜伏期左右两侧分别为 16.46ms和 16.73ms,两侧潜伏期差为 1.60ms,两侧波幅比和面积比分别为 0.49和 0.39,两侧中枢传导时间( CCT)分别为 11.79ms和 11.75ms,两侧差为 2.00ms。 Cz- ADM潜伏期左右两侧分别为 25.18ms和 24.80ms,两侧潜伏期差为 1.82ms,两侧波幅比和面积比分别为 0.47和 0.46。 C7- ADM潜伏期左右两侧分别为 16.70ms和 17.44ms,两侧潜伏期差为 1.69ms,两侧波幅比和面积比分别为 0.41和 0.42,两侧中枢传导时间( CCT)分别为 11.71ms和 11.80ms,两侧差为 1.86ms。结论:健康人跨颅电磁刺激 MEP潜伏期具有相对的稳定性及良好的重复性,可作为神经电生理学检测的一个可靠指标,但波幅及面积变异性较大,能否作为一个可靠的检测指标尚有待于进一步研究。 This study aims to explore a method to record and analyze motor evoked potentials (MEP) of upper limbs. Compound muscle action potentials (CMAP) are recorded from abductor digiti minimi (ADM) and abductor pollicis brevis (APB) by magnetic stimulation of human brain and peripheral nervous. Results show that the latency of left and right Cz- APB is 25.23ms and 25.19ms respectively.The difference of the bilateral latencies is 2.24ms. The rate of amplitude, the rate of area for bilateral sides is 0.45 and 0.37. The left and right central conduction time (CCT) of Cz- APB is 11.79ms and 11.75ms. The bilateral difference is 2.00ms. The latency of left and right Cz- ADM is 25.23ms and 25.19ms respectively. The difference of bilateral latencies is 2.24ms. The rate of amplitude, the rate of area for bilateral sides is 0.45 and 0.37. The left and right CCT of Cz- ADM is 11.79ms and 11.75ms.The bilateral difference is 1.86ms.
作者 朱广友 沈彦
出处 《法医学杂志》 CAS CSCD 2000年第4期196-197,200,共3页 Journal of Forensic Medicine
关键词 上肢运动 磁刺激 诱发电位 upper limbs, magnetic stimulation, motor evoked potentials
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  • 2郑菊阳,张朔,樊东升,张俊,徐迎胜,康德瑄.运动诱发电位在上运动神经元损害的诊断价值[J].脑与神经疾病杂志,2005,13(6):428-430. 被引量:1
  • 3刘英,杨友松,胥勋成,李素荣,邹艺.磁运动诱发电位200例数据分析[J].中国临床康复,2006,10(46):85-85. 被引量:1
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