Lovelace R E, Myers S J, Zablow L
J Neurol Neurosurg Psychiatry. 1973 Dec;36(6):942-50. doi: 10.1136/jnnp.36.6.942.
A method of obtaining pure sensory nerve conduction velocities in the lower extremities is described. This involves the use of electronic summation (signal averaging). Potentials were obtained and velocities calculated from all normal subjects examined. In patients with peripheral neuropathies it was often possible to obtain nerve velocities with signal amplitudes as low as 0·1 μV and these were often slower than those obtained from the normal subjects. The advantages and disadvantages of this method are discussed. It is of significant clinical value in that pure sensory nerve conduction velocities can be measured in the legs when this may be the only valuable parameter in the absence of motor involvement. In addition, investigation of neuropathies at an earlier stage of development and recovery may be facilitated. It is hoped that in the future this technique of obtaining low amplitude responses with an analogue averager can be incorporated with the more routine aspects of nerve conduction testing when clinically indicated.
本文描述了一种获取下肢纯感觉神经传导速度的方法。该方法涉及使用电子求和（信号平均）技术。对所有接受检查的正常受试者均记录了电位并计算了速度。在患有周围神经病变的患者中，通常能够获得信号幅度低至0.1微伏的神经速度，且这些速度往往比正常受试者的速度慢。本文讨论了该方法的优缺点。该方法具有重要的临床价值，因为当腿部可能是唯一有价值的参数（在无运动受累的情况下）时，可以测量纯感觉神经传导速度。此外，该方法可能有助于在神经病变发展和恢复的早期阶段进行研究。希望在未来，当临床需要时，这种使用模拟平均器获取低幅度反应的技术能够与神经传导测试的更常规方面相结合。
