[1]逯娅雯,逯迈. 经颅直流电刺激中阴极参数对电场分布的影响[J].中国医学物理学杂志,2019,36(6):727-731.[doi:DOI:10.3969/j.issn.1005-202X.2019.06.021]
 LU Yawen,LU Mai. Effects of cathode parameters on electric field distribution in transcranial direct current stimulation[J].Chinese Journal of Medical Physics,2019,36(6):727-731.[doi:DOI:10.3969/j.issn.1005-202X.2019.06.021]
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 经颅直流电刺激中阴极参数对电场分布的影响()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
36卷
期数:
2019年第6期
页码:
727-731
栏目:
医学生物物理
出版日期:
2019-06-25

文章信息/Info

Title:
 Effects of cathode parameters on electric field distribution in transcranial direct current stimulation
文章编号:
1005-202X(2019)06-0727-05
作者:
 逯娅雯1逯迈2
 1.兰州大学第一临床医学院, 甘肃 兰州 730000; 2.兰州交通大学光电技术与智能控制教育部重点实验室, 甘肃 兰州 730070
Author(s):
 LU Yawen1 LU Mai2
 1. The First Clinical Medical College, Lanzhou University, Lanzhou 730000, China; 2. Key Laboratory of Optoelectronic Technology and Intelligent Control, Ministry of Education, Lanzhou Jiaotong University, Lanzhou 730070, China
关键词:
 【关键词】经颅直流电刺激COMSOL球头模型电极数电场强度
Keywords:
 Keywords: transcranial direct current stimulation COMSOL spherical head model number of elextrodes electric field strength
分类号:
R318
DOI:
DOI:10.3969/j.issn.1005-202X.2019.06.021
文献标志码:
A
摘要:
 【摘要】经颅直流电刺激是一种非介入式的刺激方法。为了解电刺激中阴极电极数与位置对头脑模型中空间电场分布的影响,基于人体头部解剖结构,通过COMSOL仿真软件,建立3层同心球体有限元头模型,通过数值计算方法,研究不同偏转角度下阴极电极数对头脑组织电场分布的影响,并得到头脑模型中不同偏转角度下电极个数与电场强度的关系曲线。结果表明:阴极个数及偏转角度对头脑组织中电场分布的影响趋势不同;阴极偏转角度的增加,使电场更易分布在较深的脑组织中;放置2个或3个阴极可使大脑皮层获得更为良好的刺激效果。在实际应用中,需根据刺激靶点的位置及刺激强度的要求,综合选择合理的电极数及阴极偏转角度。
Abstract:
 Abstract: Transcranial direct current stimulation is a non-interventional stimulation method. A 3-layer concentric sphere finite element model is established based on human head anatomical structure via COMSOL simulation software, so as to explore the effects of the number and location of cathode electrodes on spatial electric field distribution in head and brain model. The effects of the number of cathode electrodes on electric field distribution at different deflection angles are studied with numerical method, and the relationships between the electric field strength and the number of cathode electrodes at different deflection angles are obtained. The results show that the number of cathode electrodes and deflection angle have different effects on the electric field distribution in head and brain tissues. The increase of cathode deflection angle makes the electric field more easily distribute in the deeper brain tissues. Placing 2-3 cathode electrodes gives the cortex a better stimulation. In practical application, an optimal cathode deflection angle and a reasonable number of cathode electrodes should be selected according to the location and stimulation strength of the stimulation targets.

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备注/Memo

备注/Memo:
 【收稿日期】2018-12-15
【基金项目】国家自然科学基金(51567015)
【作者简介】逯娅雯,研究方向:临床医学,E-mail: ywlu18@163.com
【通信作者】逯迈,博士,教授,博士生导师,研究方向:生物医学电磁学、电磁暴露安全评估,E-mail: mai.lu@hotmail.com
更新日期/Last Update: 2019-06-25