Electrophysiological Study of Peripheral Nerve Injury

  • Yasusuke Hirasawa


Neurological diagnosis often depends on imaging modalities such as computed tomography (CT) and magnetic resonance imaging (MRI). However, electro-physiologic examinations are needed for the functional diagnosis of nervous systems, such as the peripheral nerves and the spinal cord. Electromyographic instruments have undergone rapid development since the late 1980s, and technological innovations, such as the invention of quantitative electromyography and the automatic potential velocity meter and the introduction of magnetic and high-voltage, low-impedance electric stimulation techniques, by which the central nervous system can be stimulated, have made examination of conductivity possible in all nerves of the human body. In this chapter, electromyography, peripheral nerve conduction tests, and spinal evoked potentials are described [68,110,140].


Nerve Conduction Carpal Tunnel Syndrome Recording Electrode Peripheral Nerve Injury Compound Muscle Action Potential 
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Copyright information

© Springer Japan 2002

Authors and Affiliations

  • Yasusuke Hirasawa
    • 1
    • 2
  1. 1.Kyoto Prefectural University of MedicineJapan
  2. 2.Graduate SchoolMeiji University of Oriental MedicineKyotoJapan

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