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

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IEEE Transactions on Magnetics




Transcranial Magnetic Stimulation (TMS) is a non-invasive therapeutic and restorative mode of treating neurological disorders which has been approved by the United States Food and Drug Administration (FDA). It has proven to be an effective way of treating disorders as it is a less risky technology compared to conventional brain surgery. Various researchers have proposed coil designs for TMS aimed at achieving high focality and increased penetration depth of the induced electric field in the brain. In the present research, the authors compare the Figure of Eight (FOE) coil, Quadruple Butterfly Coil (QBC) and Triple Halo Coil (THC) on different head models to confirm the different effect of coil configuration on the induced electric field. Finite element simulations were conducted with Sim4life software to determine the maximum electric field intensity, E-Max (V/m) and the stimulated volume of the brain, V-Half (mm3). The coils were positioned at the dorsolateral prefrontal cortex (DLPFC) location of the head and results were compared of the gray matter and white matter with the entire anatomic structure of the brain to confirm the effect of coil configuration and the variability of the anatomical structure.


This is a manuscript of an article published as Afuwape, Oluwaponmile, Priyam Rastogi, and David Jiles. "Comparison of the Effect of Coil Configuration and the Variability of Anatomical Structure on Transcranial Magnetic Stimulation." IEEE Transactions on Magnetics (2020). DOI: 10.1109/TMAG.2020.3006459. Posted with permission.


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