腓浅神经至胫骨前肌传导研究：E2 电极（参考电极）的最佳放置位置。
Proximal fibular nerve conduction studies to tibialis anterior: Optimal E2 (reference electrode) placement.
机构信息
Department of Clinical Neurophysiology, Royal Melbourne Hospital, Parkville, Victoria, Australia.
出版信息
Muscle Nerve. 2021 Mar;63(3):344-350. doi: 10.1002/mus.27127. Epub 2020 Dec 15.
BACKGROUND
Several E2 (reference electrode) positions are described for fibular (peroneal) nerve conduction studies to tibialis anterior (TA).
METHODS
This study compared the contribution of different E2 sites to the TA motor response, using remote referential recordings and different bipolar montages.
RESULTS
The medial knee contributes minimal electrical activity to the bipolar TA recordings, whereas tibial, ankle, and toe references resulted in very similar, moderate amplitude contributions consistent with far field potentials. These observations were very similar in controls and in patients with lower leg symptoms and signs.
CONCLUSIONS
Standard montages using distal leg or foot E2 sites result in lower amplitudes with distortion arising from the E2 electrode, compared with the TA-Knee montage. Optimal measurement of the TA motor response is achieved using a medial knee reference, without compromising measures of fibular nerve conduction across the knee.
背景
有几种描述腓（皮）神经传导研究中用于胫骨前肌（TA）的参考电极（E2）位置的方法。
方法
本研究通过远程参考记录和不同的双极导联比较了不同 E2 部位对 TA 运动反应的贡献。
结果
膝关节内侧对双极 TA 记录的电活动贡献最小，而胫骨、踝和趾参考电极则产生非常相似的、中等幅度的贡献，与远场电位一致。这些观察结果在对照组和小腿症状和体征患者中非常相似。
结论
与 TA-膝导联相比，使用小腿或足部 E2 部位的标准导联会产生较低的振幅，并因 E2 电极而产生失真。使用膝关节内侧参考可实现 TA 运动反应的最佳测量，而不会影响膝关节处腓神经传导的测量。
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