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Paper Abstract and Keywords
Presentation 2024-07-11 11:30
Optimal Coil Orientation in TMS Targeting the Primary Motor Cortex
Yosuke Nagata, Sachiko Kodera, Akimasa Hirata (NITech) EMT2024-24 MW2024-48 OPE2024-27 EST2024-25 MWPTHz2024-31
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, there has been a growing interest in non-invasive stimulation of the brain for medical diagnosis. Transcranial magnetic stimulation (TMS) is a non-invasive scheme that induces an electric current below the stimulating coil, in which a pulse is injected through its windings. TMS has been used for brain mapping of language and motor function. When stimulating the primary motor cortex with a figure-8 coil, the optimal coil orientation is considered to be the direction in which the induced current flows roughly perpendicular to the gyrus of the primary motor cortex. However, because the shape of the brain differs from person to person, the angle rotated 45° from the direction from the back to the front of the head has been widely used as a reference orientation. There are few examples evaluating the variation in the induced electric field due to the orientation when the coil is placed perpendicular to the gyrus of the primary motor cortex, and the number of models used to study the optimal coil orientation has remained below 20. In this paper, we evaluated the angle dependence of the induced electric field in the primary motor cortex at the group level by placing coils directly above the primary motor cortex on a total of 135 realistic human head models and conducting electromagnetic field simulations by changing the coil orientation, and examined the optimal coil orientation.
Keyword (in Japanese) (See Japanese page) 
(in English) Transcranial Magnetic Stimulation (TMS) / Scalar Potential Finite Difference (SPFD) Method / Realistic Human Model / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 98, EST2024-25, pp. 80-85, July 2024.
Paper # EST2024-25 
Date of Issue 2024-07-04 (EMT, MW, OPE, EST, MWPTHz) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EMT2024-24 MW2024-48 OPE2024-27 EST2024-25 MWPTHz2024-31

Conference Information
Committee MW EMT OPE MWPTHz EST IEE-EMT  
Conference Date 2024-07-11 - 2024-07-12 
Place (in Japanese) (See Japanese page) 
Place (in English) otaru-shimin-kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Workshop on Optical and Microwave technologies 
Paper Information
Registration To EST 
Conference Code 2024-07-MW-EMT-OPE-MWPTHz-EST-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Optimal Coil Orientation in TMS Targeting the Primary Motor Cortex 
Sub Title (in English)  
Keyword(1) Transcranial Magnetic Stimulation (TMS)  
Keyword(2) Scalar Potential Finite Difference (SPFD) Method  
Keyword(3) Realistic Human Model  
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1st Author's Name Yosuke Nagata  
1st Author's Affiliation Nagoya Institute of Technology (NITech)
2nd Author's Name Sachiko Kodera  
2nd Author's Affiliation Nagoya Institute of Technology (NITech)
3rd Author's Name Akimasa Hirata  
3rd Author's Affiliation Nagoya Institute of Technology (NITech)
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Speaker Author-1 
Date Time 2024-07-11 11:30:00 
Presentation Time 25 minutes 
Registration for EST 
Paper # EMT2024-24, MW2024-48, OPE2024-27, EST2024-25, MWPTHz2024-31 
Volume (vol) vol.124 
Number (no) no.95(EMT), no.96(MW), no.97(OPE), no.98(EST), no.99(MWPTHz) 
Page pp.80-85 
#Pages 6 
Date of Issue 2024-07-04 (EMT, MW, OPE, EST, MWPTHz) 

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