Transcranial Magnetic Stimulation-coil design with improved focality
Transcranial Magnetic Stimulation (TMS) is a technique for neuromodulation that can be used as a non-invasive therapy for various neurological disorders. In TMS, a time varying magnetic field generated from an electromagnetic coil placed on the scalp is used to induce an electric field inside the br...
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doaj-fa8788c8929046668bb19529157aaefc2020-11-24T21:27:14ZengAIP Publishing LLCAIP Advances2158-32262017-05-0175056705056705-610.1063/1.4973604065791ADVTranscranial Magnetic Stimulation-coil design with improved focalityP. Rastogi0E. G. Lee1R. L. Hadimani2D. C. Jiles3Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USADepartment of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USADepartment of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USADepartment of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USATranscranial Magnetic Stimulation (TMS) is a technique for neuromodulation that can be used as a non-invasive therapy for various neurological disorders. In TMS, a time varying magnetic field generated from an electromagnetic coil placed on the scalp is used to induce an electric field inside the brain. TMS coil geometry plays an important role in determining the focality and depth of penetration of the induced electric field responsible for stimulation. Clinicians and basic scientists are interested in stimulating a localized area of the brain, while minimizing the stimulation of surrounding neural networks. In this paper, a novel coil has been proposed, namely Quadruple Butterfly Coil (QBC) with an improved focality over the commercial Figure-8 coil. Finite element simulations were conducted with both the QBC and the conventional Figure-8 coil. The two coil’s stimulation profiles were assessed with 50 anatomically realistic MRI derived head models. The coils were positioned on the vertex and the scalp over the dorsolateral prefrontal cortex to stimulate the brain. Computer modeling of the coils has been done to determine the parameters of interest-volume of stimulation, maximum electric field, location of maximum electric field and area of stimulation across all 50 head models for both coils.http://dx.doi.org/10.1063/1.4973604 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
P. Rastogi E. G. Lee R. L. Hadimani D. C. Jiles |
spellingShingle |
P. Rastogi E. G. Lee R. L. Hadimani D. C. Jiles Transcranial Magnetic Stimulation-coil design with improved focality AIP Advances |
author_facet |
P. Rastogi E. G. Lee R. L. Hadimani D. C. Jiles |
author_sort |
P. Rastogi |
title |
Transcranial Magnetic Stimulation-coil design with improved focality |
title_short |
Transcranial Magnetic Stimulation-coil design with improved focality |
title_full |
Transcranial Magnetic Stimulation-coil design with improved focality |
title_fullStr |
Transcranial Magnetic Stimulation-coil design with improved focality |
title_full_unstemmed |
Transcranial Magnetic Stimulation-coil design with improved focality |
title_sort |
transcranial magnetic stimulation-coil design with improved focality |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2017-05-01 |
description |
Transcranial Magnetic Stimulation (TMS) is a technique for neuromodulation that can be used as a non-invasive therapy for various neurological disorders. In TMS, a time varying magnetic field generated from an electromagnetic coil placed on the scalp is used to induce an electric field inside the brain. TMS coil geometry plays an important role in determining the focality and depth of penetration of the induced electric field responsible for stimulation. Clinicians and basic scientists are interested in stimulating a localized area of the brain, while minimizing the stimulation of surrounding neural networks. In this paper, a novel coil has been proposed, namely Quadruple Butterfly Coil (QBC) with an improved focality over the commercial Figure-8 coil. Finite element simulations were conducted with both the QBC and the conventional Figure-8 coil. The two coil’s stimulation profiles were assessed with 50 anatomically realistic MRI derived head models. The coils were positioned on the vertex and the scalp over the dorsolateral prefrontal cortex to stimulate the brain. Computer modeling of the coils has been done to determine the parameters of interest-volume of stimulation, maximum electric field, location of maximum electric field and area of stimulation across all 50 head models for both coils. |
url |
http://dx.doi.org/10.1063/1.4973604 |
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