How is coil overheating prevented during the generation of motor evoked potentials (MEPs)?

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

Answer

Magnetic stimulation creates intense electrical discharges. Repetitive stimuli make the coil hot, and this can be a problem in clinical practice. Commercially available devices have auto-shutdown systems and temperature monitors that indicate coil overheating. These features protect patients but may prolong the duration of the procedure by 100-200%, an inconvenience that may be reduced by using several interchangeable coils or water-cooled coils.


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