Transcranial magnetic stimulation of the trigeminal nerve: intraoperative study on stimulation characteristics in man.
Transcranial magnetic stimulation of the trigeminal nerve: intraoperative study on stimulation characteristics in man.
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三叉神经经颅磁刺激：人体刺激特性的术中研究。
DOI：
10.1002/mus.880180503
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Schmid,J
中科院分区：
文献类型：
--
作者：
Schmid,UD;Moller,AR;Schmid,J
我们研究了磁刺激（magStim）后咬肌和鼻肌的反应，并将这些反应与直接电刺激三叉神经（NV）和面神经（NVII）在神经根出口区附近的微血管减压手术的NVII。我们发现：（1）兴奋神经的magStim阈值对于NV较高，而对于NVI较低;（2）兴奋所有运动纤维对于NV是不可能的，而对于NVI是容易的;（3）最佳线圈放置对于NV是关键的，但对于NVI不是关键的;以及（4）在受试者之间和受试者内部，兴奋部位在NV上是可变的，但在NVI上是稳定的。我们估计，对于NV，magStim的解剖位置在脑脊液内或脑脊液外，对于NVI，magStim的解剖位置在面神经管的神经节段内。物理模型解释和临床病变模型支持NV和NVII之间发现的这些差异。John Wiley & Sons，Inc.
We studied responses from the masseter and nasalis muscles following magnetic stimulation (magStim) and compared these responses with those obtained by direct electrical stimulation of the trigeminal (NV) and facial (NVII) nerve near the root exit zone during microvascular decompression operations of NVII. We found that (1) magStim threshold to excite the nerve is high for NV and low for NVII; (2) excitation of all motor fibers is impossible for NV, and easy for NVII; (3) optimal coil placement is critical for NV, but not critical for NVII; and (4) between and within subjects, the excitation site is variable on NV, but stable on NVII. We estimated that the anatomical location of magStim to be either within or outside the cerebrospinal fluid for NV, and to be in the labyrinthine segment of the facial canal for NVII. Physical models explain and clinical lesion models support these differences found between NV and NVII. © 1995 John Wiley & Sons, Inc.