How are motor evoked potentials (MEPs) recorded?

Updated: Aug 20, 2019
  • Author: Jasvinder Chawla, MD, MBA; Chief Editor: Selim R Benbadis, MD  more...
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Answer

Answer

Motor evoked potentials (MEPs) usually are recorded with surface electrodes in target muscles. Coaxial needle electrodes can be used for more selective recording, mostly in research studies. Superimposition of 2 or more tracings of reproducible morphology helps to identify the parameters of interest correctly


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