Campus Units

Electrical and Computer Engineering, Materials Science and Engineering, Ames Laboratory, Mechanical Engineering, Neuroscience

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

8-18-2020

Journal or Book Title

IEEE Transactions on Magnetics

DOI

10.1109/TMAG.2020.3017565

Abstract

Transcranial Magnetic Stimulation (TMS) is a neuromodulation technique that non-invasively depolarizes neurons in the brain. During TMS, a pulse (or multiple pulses) of a time-varying magnetic field (H) is delivered to the brain using specialized coils. The Quadruple Butterfly Coil (QBC) is a novel coil design that shows increased focality of the induced electric field over that of the standard figure-of-eight (FoE) coil. Using 50 different head models created from MRI scans of healthy individuals, our research investigated the role that brain-scalp distance (BSD) plays in the brain’s response to the magnetic fields generated by the QBC and FoE. The variability of BSD is an inherent characteristic in the human population. As the BSD increases, so does the distance between the brain and TMS coil. Therefore, the anatomical variation of BSD is an independent variable that may play a significant role in the intensity of the induced electric field produced in the brain. Our results show no significant difference of the QBC’s focality to that of the FoE with respect to BSD.

Comments

This is a manuscript of an article published as Afuwape, Oluwaponmile F., Joseph Boldrey, Priyam Rastogi, Sarah A. Bentil, and David C. Jiles. "Influence of Brain-Scalp Distance on Focality of the Quadruple Butterfly Coil for Transcranial Magnetic Stimulation." IEEE Transactions on Magnetics (2020). DOI: 10.1109/TMAG.2020.3017565. Posted with permission.

Rights

© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Copyright Owner

IEEE

Language

en

File Format

application/pdf

Published Version

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