Application of time reversal mirror technique in microwave-induced thermo-acoustic tomography system

被引：4

作者：

Chen GuoPing ^{[1
]}

Zhao ZhiQin ^{[1
]}

Zheng WenJun ^{[1
]}

Nie ZaiPing ^{[1
]}

Liu QingHuo ^{[1
,2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu 610054, Peoples R China

[2] Duke Univ, Dept Elect & Comp Engn, Durham, NC USA

来源：

SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES | 2009年 / 52卷 / 07期

基金：

中国国家自然科学基金;

关键词：

microwave-induced thermo-acoustic tomography (MITAT); time reversal mirror (TRM); pseudo-spectrum time domain (PSTD);

D O I：

10.1007/s11431-009-0148-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microwave-induced thermo-acoustic tomography (MITAT) is a promising technique with great potential in biomedical imaging. It has both the high contrast of the microwave imaging and the high resolution of the ultrasound imaging. In this paper, the proportional relationship between the absorbed microwave energy distribution and the induced ultrasound source distribution is derived. Further, the time reversal mirror (TRM) technique based on the pseudo-spectral time domain (PSTD) method is applied to MITAT system. The simulation results show that high contrast and resolution can be achieved by the TRM technique based on PSTD method even for the received signals with very low signal-to-noise ratio (SNR) and the model parameter with random fluctuation.

引用

页码：2087 / 2095

页数：9

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