Theoretical Analysis and Design of an Innovative Coil Structure for Transcranial Magnetic Stimulation

Previous research showed that pulsed functional magnetic stimulation can activate brain tissue with optimum intensity and frequency. Conventional stimulation coils are always set as a figure-8 type or Helmholtz. However, the magnetic fields generated by these coils are uniform around the target, and...

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Main Authors: Naming Zhang, Ziang Wang, Jinhua Shi, Shuya Ning, Yukuo Zhang, Shuhong Wang, Hao Qiu
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/4/1960
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spelling doaj-2b943bda2ff847d8826b7345a1a19f232021-02-24T00:02:23ZengMDPI AGApplied Sciences2076-34172021-02-01111960196010.3390/app11041960Theoretical Analysis and Design of an Innovative Coil Structure for Transcranial Magnetic StimulationNaming Zhang0Ziang Wang1Jinhua Shi2Shuya Ning3Yukuo Zhang4Shuhong Wang5Hao Qiu6State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an 710021, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaPrevious research showed that pulsed functional magnetic stimulation can activate brain tissue with optimum intensity and frequency. Conventional stimulation coils are always set as a figure-8 type or Helmholtz. However, the magnetic fields generated by these coils are uniform around the target, and their magnetic stimulation performance still needs improvement. In this paper, a novel type of stimulation coil is proposed to shrink the irritative zone and strengthen the stimulation intensity. Furthermore, the electromagnetic field distribution is calculated and measured. Based on numerical simulations, the proposed coil is compared to traditional coil types. Moreover, the influential factors, such as the diameter and the intersection angle, are also analyzed. It was demonstrated that the proposed coil has a better performance in comparison with the figure-8 coil. Thus, this work suggests a new way to design stimulation coils for transcranial magnetic stimulation.https://www.mdpi.com/2076-3417/11/4/1960magnetic fieldmagnetic stimulationnumerical calculation
collection DOAJ
language English
format Article
sources DOAJ
author Naming Zhang
Ziang Wang
Jinhua Shi
Shuya Ning
Yukuo Zhang
Shuhong Wang
Hao Qiu
spellingShingle Naming Zhang
Ziang Wang
Jinhua Shi
Shuya Ning
Yukuo Zhang
Shuhong Wang
Hao Qiu
Theoretical Analysis and Design of an Innovative Coil Structure for Transcranial Magnetic Stimulation
Applied Sciences
magnetic field
magnetic stimulation
numerical calculation
author_facet Naming Zhang
Ziang Wang
Jinhua Shi
Shuya Ning
Yukuo Zhang
Shuhong Wang
Hao Qiu
author_sort Naming Zhang
title Theoretical Analysis and Design of an Innovative Coil Structure for Transcranial Magnetic Stimulation
title_short Theoretical Analysis and Design of an Innovative Coil Structure for Transcranial Magnetic Stimulation
title_full Theoretical Analysis and Design of an Innovative Coil Structure for Transcranial Magnetic Stimulation
title_fullStr Theoretical Analysis and Design of an Innovative Coil Structure for Transcranial Magnetic Stimulation
title_full_unstemmed Theoretical Analysis and Design of an Innovative Coil Structure for Transcranial Magnetic Stimulation
title_sort theoretical analysis and design of an innovative coil structure for transcranial magnetic stimulation
publisher MDPI AG
series Applied Sciences
issn 2076-3417
publishDate 2021-02-01
description Previous research showed that pulsed functional magnetic stimulation can activate brain tissue with optimum intensity and frequency. Conventional stimulation coils are always set as a figure-8 type or Helmholtz. However, the magnetic fields generated by these coils are uniform around the target, and their magnetic stimulation performance still needs improvement. In this paper, a novel type of stimulation coil is proposed to shrink the irritative zone and strengthen the stimulation intensity. Furthermore, the electromagnetic field distribution is calculated and measured. Based on numerical simulations, the proposed coil is compared to traditional coil types. Moreover, the influential factors, such as the diameter and the intersection angle, are also analyzed. It was demonstrated that the proposed coil has a better performance in comparison with the figure-8 coil. Thus, this work suggests a new way to design stimulation coils for transcranial magnetic stimulation.
topic magnetic field
magnetic stimulation
numerical calculation
url https://www.mdpi.com/2076-3417/11/4/1960
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