Investigating the Distribution of Induced Electric Field Generated by Double Square Semicircle Coil in Transcranial Magnetic Stimulation

Authors

  • Yong Wang Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China, School of Electronic and Information Engineering University of Science and Technology Liaoning, Anshan 114000, China
  • Zhengguo Li Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China
  • Jianyang Li School of Electronic and Information Engineering University of Science and Technology Liaoning, Anshan 114000, China
  • Haiyang Zhang Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China, School of Electronic and Information Engineering University of Science and Technology Liaoning, Anshan 114000, China
  • Enzhong Gong Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China
  • Liantao Shi Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China, School of Electronic and Information Engineering University of Science and Technology Liaoning, Anshan 114000, China

DOI:

https://doi.org/10.13052/2025.ACES.J.400107

Keywords:

Finite-element method, focality, Sim4Life, stimulation depth, stimulation intensity

Abstract

Transcranial magnetic stimulation (TMS) is a physical technique that modulates the human brain nervous system and can be used as a non-invasive treatment for neurological diseases. To address the problem of poor focusing performance of TMS coils, this study first designs a new coil geometry, Double Square Semicircle (DSS) coil, based on traditional coil stimulation characteristics. Second, this study uses the Sim4Life finite element simulation software to compare the stimulation characteristics of DSS coil and six traditional coils under the head model, proving that the induced electric field generated by DSS coil has high-focusing performance. Third, this paper explores the effects of four physical parameters - the distance between the human brain model and the coil, different stimulation directions, coil size and coil bending angle - on the spatial distribution of the induced electric field. After the above simulation experiments, the optimal design scheme of DSS coil is found. Experimental results show that, compared with several traditional coils, the focusing effect can be improved by up to 77.49%, proving that DSS is a high-focusing performance TMS coil, which is suitable for future TMS high-precision treatment needs.

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Author Biographies

Yong Wang, Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China, School of Electronic and Information Engineering University of Science and Technology Liaoning, Anshan 114000, China

Yong Wang graduated from the School of Telecommunication, University of Science and Technology Liaoning, majoring in electronic information. He is currently pursuing his PhD at Jilin University with a research direction of bioelectromagnetism and human health.

Zhengguo Li, Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China

Zhengguo Li was born in 1972 and holds a Ph.D. from Central South University. Li is a leading professional in Guangdong Province, a specially appointed scholar professor in Pengcheng, Shenzhen, and a high-level talent in Shenzhen. For many years, he has been committed to research on new energy vehicle technology, power electronics technology, carbon neutrality technology, school enterprise cooperation, and collaborative education. His current research direction is new energy vehicle technology and electromagnetic compatibility technology.

Jianyang Li, School of Electronic and Information Engineering University of Science and Technology Liaoning, Anshan 114000, China

Jianyang Li graduated from the School of Telecommunication, University of Science and Technology Liaoning, majoring in electronic information. His research direction is the research and development of transcranial magnetic therapy instrument. He is currently a communication engineer at China Mobile Communications Co. Ltd.

Haiyang Zhang, Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China, School of Electronic and Information Engineering University of Science and Technology Liaoning, Anshan 114000, China

Haiyang Zhang graduated from the College of Telecommunications, University of Science and Technology Liaoning, and was jointly trained with the Academician Workstation of Ju Dongying, Shenzhen Vocational and Technical University. His major was control engineering, and his research direction is human health and power equipment.

Enzhong Gong, Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China

Enzhong Gong was born in 1994. He is a master’s degree holder, assistant researcher, mainly engaged in research in new energy technology, electromagnetic compatibility technology, and other fields.

Liantao Shi, Institute for Carbon-Neutral Technology Shenzhen Polytechnic University, Shenzhen 518055, China, School of Electronic and Information Engineering University of Science and Technology Liaoning, Anshan 114000, China

Liantao Shi received his B.S. degree from Huaqiao University in 2018 and his M.S from the University of Science and Technology Liaoning in 2022. His main research direction is embedded systems and computer vision semantic segmentation.

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Published

2025-01-30

How to Cite

[1]
Y. . Wang, Z. . Li, J. . Li, H. . Zhang, E. . Gong, and L. . Shi, “Investigating the Distribution of Induced Electric Field Generated by Double Square Semicircle Coil in Transcranial Magnetic Stimulation”, ACES Journal, vol. 40, no. 01, pp. 51–61, Jan. 2025.

Issue

2025: Vol 40 Iss 1

Section

General Submission

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