基于有限元仿真的磁感应肿瘤治疗设备线圈优化设计

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清华大学辅仁网/2017-07-07

武建安¹, 吴祖河¹, 王亨¹, 李利亚², 唐劲天¹

1. 清华大学工程物理系, 粒子技术与辐射成像教育部重点实验室, 北京 100084;
2. 中日友好医院中西医结合肿瘤内科, 北京 100029

Optimization of a coil design for magnetic hyperthermia treatment based on the finite element method

WU Jian'an¹, WU Zuhe¹, WANG Heng¹, LI Liya², TANG Jintian¹

1. Key Laboratory of Particle & Radiation Imaging of the Ministry of Education, Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
2. Oncology Department of Integrative Medicine, China-Japan Friendship Hospital, Beijing 100029, China

摘要:

输出: BibTeX | EndNote (RIS)

摘要在针对头部肿瘤的线圈式磁感应肿瘤治疗设备设计中,为了提高治疗磁场的强度与均匀度,需要对传统的圆形同轴线圈进行改进。根据临床需求和理论分析,采用D形线圈设计,并通过软件仿真与实际测量加以评估。结果表明:在相同条件下D形线圈与圆形线圈相比其中心磁场强度提高了约5.9%,有效治疗空间增加了约4.6%,设备性能有了一定的提高。线圈电感值的仿真与实际测量结果均符合设备要求。

关键词 ：肿瘤,磁感应热疗,有限元,电磁场

Abstract：A D-shaped coil improved the magnetic intensity and magnetic field uniformity over a circular coil for tumors in the head. The coil was designed using computer simulations and evaluated in trials with the center magnetic field intensity increased by 5.9%, and the valid treatment space increased by 4.6%. The coil also meets the design requirements.

Key words：tumor magnetic hyperthermia finite element method electromagnetic field

收稿日期: 2015-06-04 出版日期: 2016-05-09

ZTFLH:

R730.59

通讯作者:唐劲天,研究员。E-mail:tangjt@mail.tsinghua.edu.cnE-mail: tangjt@mail.tsinghua.edu.cn

引用本文:

武建安, 吴祖河, 王亨, 李利亚, 唐劲天. 基于有限元仿真的磁感应肿瘤治疗设备线圈优化设计[J]. 清华大学学报（自然科学版）, 2016, 56(4): 406-410,416.
WU Jian'an, WU Zuhe, WANG Heng, LI Liya, TANG Jintian. Optimization of a coil design for magnetic hyperthermia treatment based on the finite element method. Journal of Tsinghua University(Science and Technology), 2016, 56(4): 406-410,416.

链接本文:

http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2016.24.011或 http://jst.tsinghuajournals.com/CN/Y2016/V56/I4/406

图表:

图１　串联谐振电路原理图

图２　建立D 形线圈模型与网格化结果

表１　模型组件的电磁学属性值

图３　不同平面上D 形线圈磁场强度分布图

图４　不同轴线上D 形线圈与圆形线圈的磁场强度对比图

表２　线圈电感矩阵

图５　实际D 形线圈的设计与制造

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