학술논문
The Electric Field Induced by a Microcoil During Magnetic Stimulation
Document Type
Periodical
Author
Source
IEEE Transactions on Biomedical Engineering IEEE Trans. Biomed. Eng. Biomedical Engineering, IEEE Transactions on. 70(11):3260-3262 Nov, 2023
Subject
Language
ISSN
0018-9294
1558-2531
1558-2531
Abstract
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.