Objective: The purpose of this study is to calculate the electric field produced by an implanted microcoil during magnetic stimulation of the brain.
Methods: The electric field of a microcoil was calculated numerically.
Results: The maximum value of the induced electric field is approximately 0.000026 V/m for a 1 mA, 3 kHz current passed through the coil.
Conclusion: This electric field value is too small to cause neural stimulation.
Significance: Previous studies reporting magnetic stimulation using a microcoil must have been exciting neurons by some other mechanism.
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| http://dx.doi.org/10.1109/TBME.2023.3275098 | DOI Listing |
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