Masur H, Klostermann F, Oberwittler C, Papke K
Department of Neurology, University of Münster, Germany.
Funct Neurol. 1996 Sep-Oct;11(5):253-9.
Somatosensory evoked potentials (SEPs) were elicited by magnetic stimulation of the tibial nerve, gastrocnemic muscle and by stimulation over the spinous processes of lumbar vertebra 5 (L 5), thoracic vertebra 9 (Th 9) and cervical vertebra 7 (C 7). The first SEP-positivity (P1-latency) was measured in a group of 20 controls and in another group of 18 patients with syringomyelia. The P1-latencies of the latter group following the stimulations over Th 9 and C 7 were significantly longer than those of the controls. Furthermore a correlation between electrophysiological findings and clinical data of the patients could be proven. Thus the method emerged as an appropriate tool for the investigation of the central part of the sensory system and for the diagnosis of spinal abnormalities.
体感诱发电位（SEPs）通过对胫神经、腓肠肌进行磁刺激以及对第5腰椎（L5）、第9胸椎（Th9）和第7颈椎（C7）棘突进行刺激来诱发。在一组20名对照者和另一组18名脊髓空洞症患者中测量了第一个SEP阳性波（P1潜伏期）。后一组在Th9和C7刺激后的P1潜伏期明显长于对照组。此外，还证实了患者的电生理结果与临床数据之间存在相关性。因此，该方法成为研究感觉系统中枢部分和诊断脊柱异常的合适工具。
