Simulation research on magnetoacoustic effect and thermoacoustic effect of pulsed magnetic excitation_Journal of Biomedical Engineering

Authors：

YANG Yanju ^1,2 ,  LIU Guoqiang ^1,2 , XIA Zhengwu ¹

1. Chinese Academy of Sciences, Institute of Electrical Engineering, Beijing 100190, P.R.China;
2. University of Chinese Academy of Sciences, Beijing 100190, P.R.China;

Corresponding author：

LIU Guoqiang, Email: liuguoqiang@mail.iee.ac.cn

Keywords：

magnetoacoustic effect; thermoacoustic effect; magnetoacoustic tomography with magnetic induction; magnetically mediated thermoacoustici maging; pulsed magnetic field

DOI：

10.7507/1001-5515.201605024

Video：

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Abstract Full text Figures/Tables Video References Cited by

According to the coupling relationship of electromagnetic field and acoustic field when electromagnetic field irradiates low conductivity objects, we carried out a study on the magnetoacoustic effect and thermoacoustic effect in pulsed magnetic excitation. In this paper, we provide the pressure wave equation in pulsed magnetic excitation based on the theory of electromagnetic field and acoustic wave propagation. A 2-dimensional coil carrying current and a circular thin sheet model were constructed to simulate the physical imaging environment. The transient electromagnetic field was simulated using finite element method. Numerical studies were conducted to simulate the pressures excited by magnetoacoustic effect and thermoacoustic effect according to the result of electromagnetic simulation. It was shown that the thermoacoustic effect played a leading role in the low conductivity objects on the microsecond Gauss pulsed magnetic excitation, and thermoacoustic effect and magnetoacoustic effect coexisted on the microsecond Gauss pulsed magnetic field and 0.2 T static magnetic field excitation. This study lays the foundation for the further application of magnetoacoustic tomography with magnetic induction and magnetically mediated thermoacoustic imaging.

Citation： YANGYanju, LIUGuoqiang, XIAZhengwu. Simulation research on magnetoacoustic effect and thermoacoustic effect of pulsed magnetic excitation. Journal of Biomedical Engineering, 2017, 34(1): 21-26. doi: 10.7507/1001-5515.201605024 Copy

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12.	Zackrisson S, van de Ven S M, Gambhir S S. Light in and sound out: emerging translational strategies for photoacoustic imaging. Cancer Res, 2014, 74(4): 979-1004.
13.	Feng Xiaohua, Gao Fei, Kishor R, et al. Coexisting and mixing phenomena of thermoacoustic and magnetoacoustic waves in water. Sci Rep, 2015, 5: 11489.
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15.	倪光正. 工程电磁场原理. 北京: 高等教育出版社, 2008.
16.	雷银照. 轴对称线圈磁场计算. 北京: 中国计量出版社, 1991.
17.	Nguyen M Q, Hughes Z, Woods P, et al. Field distribution models of spiral coil for misalignment analysis in wireless power transfer systems. IEEE Trans Microw Theory Tech, 2014, 62(4, 2, SI): 920-930.
18.	宋显锦. 多负载分组磁谐振耦合无线电能传输研究. 北京: 中国科学院大学, 2016.
19.	陶春静, 宋涛, 吴石增, 等. 微波激励热声成像中微波源参数选择的理论分析. 北京生物医学工程, 2007, 26(1): 22-26.

1. Gabriel C, Gabriel S, Corthout E. The dielectric properties of biological tissues: I. Literature survey. Phys Med Biol, 1996, 41(11): 2231-2249.
2. Fear E C, Hagness S C, Mraneyp M, et al. Enhancing breast tumor detectionwith near-field imaging. IEEE Microwave Magazine, 2002, 3(1): 48-56.
3. QIAO Guofeng, Wang Wei, Duan Wei, et al. Bioimpedance analysis for the characterization of breast cancer cells in suspension. IEEE Trans Biomed Eng, 2012, 59(8): 2321-2329.
4. Gabriel C. Compilation of the dielectric properties of body tissues at RF and microwave frequencies. London: King’s College London, 1996.
5. 陈晶, 刘国强, 夏慧. 基于矩阵模型的感应式磁声重建算法. 现代科学仪器, 2013(2): 34-38.
6. 刘国强. 磁声成像技术. 北京: 科学出版社, 2014.
7. Wang Jiawei, Zhou Yuqi, Sun Xiaodong, et al. Acoustic source analysis of magnetoacoustic tomography with magnetic induction for conductivity gradual-varying tissues. IEEE Trans Biomed Eng, 2016, 63(4): 758-764.
8. Guo Liang, Liu Guangfu, Yang Yanju. Difference frequency magnetoacoustic tomography without static magnetic field. Applied Physics Express, 2015, 8(8): 086601.
9. Feng Xiaohua, Gao Fei, Zheng Yuanjin. Magnetically mediated thermoacoustic imaging toward deeper penetration. Appl Phys Lett, 2013, 103(8): 083704-083707.
10. Feng Xiaohua, Gao Fei, Zheng Yuanjin. Magnetically mediated thermoacoustic imaging// Proceedings of the Conference on Photons Plus Ultrasound: Imaging and Sensing 2014. San Francisco, California, United States, 2014, 894343.
11. Mashal A, Booske J H, Hagness S C. Toward contrast-enhanced microwave-induced thermoacoustic imaging of breast cancer: an experimental study of the effects of microbubbles on simple thermoacoustictargets. Phys Med Biol, 2009, 54(3): 641-650.
12. Zackrisson S, van de Ven S M, Gambhir S S. Light in and sound out: emerging translational strategies for photoacoustic imaging. Cancer Res, 2014, 74(4): 979-1004.
13. Feng Xiaohua, Gao Fei, Kishor R, et al. Coexisting and mixing phenomena of thermoacoustic and magnetoacoustic waves in water. Sci Rep, 2015, 5: 11489.
14. Hellund E J, Naff J T, Brumfield R C. Magnetoacoustics and thermoacoustics--new ideas in underwater soundsources. Sound Its Uses&Control, 1963, 2(2): 33-38.
15. 倪光正. 工程电磁场原理. 北京: 高等教育出版社, 2008.
16. 雷银照. 轴对称线圈磁场计算. 北京: 中国计量出版社, 1991.
17. Nguyen M Q, Hughes Z, Woods P, et al. Field distribution models of spiral coil for misalignment analysis in wireless power transfer systems. IEEE Trans Microw Theory Tech, 2014, 62(4, 2, SI): 920-930.
18. 宋显锦. 多负载分组磁谐振耦合无线电能传输研究. 北京: 中国科学院大学, 2016.
19. 陶春静, 宋涛, 吴石增, 等. 微波激励热声成像中微波源参数选择的理论分析. 北京生物医学工程, 2007, 26(1): 22-26.

Journal of Biomedical Engineering

Simulation research on magnetoacoustic effect and thermoacoustic effect of pulsed magnetic excitation

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