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

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.

[1]  Tobin A. Driscoll,et al.  Pseudospectral methods for large-scale bioacoustic models , 1997, 1997 IEEE Ultrasonics Symposium Proceedings. An International Symposium (Cat. No.97CH36118).

[2]  Stephen J. Norton,et al.  Ultrasonic Reflectivity Imaging in Three Dimensions: Exact Inverse Scattering Solutions for Plane, Cylindrical, and Spherical Apertures , 1981, IEEE Transactions on Biomedical Engineering.

[3]  James C. Lin.  On Microwave-Induced Hearing Sensation , 1977 .

[4]  T. Driscoll,et al.  Regular Article: A Fast Spectral Algorithm for Nonlinear Wave Equations with Linear Dispersion , 1999 .

[5]  Tao Jin,et al.  A thermoacoustically driven pulse tube refrigerator capable of working below 120 K , 2001 .

[6]  Paul M. Meaney,et al.  Alternative Breast Imaging , 2005 .

[7]  Qing Huo Liu,et al.  The Prototype of Microwave-Induced Thermo-Acoustic Tomography Imaging by Time Reversal Mirror , 2008 .

[8]  Lihong V. Wang,et al.  Photoacoustic imaging in biomedicine , 2006 .

[9]  W. Joines,et al.  The measured electrical properties of normal and malignant human tissues from 50 to 900 MHz. , 1994, Medical physics.

[10]  Qing Huo Liu,et al.  Thermoacoustic tomography forward modeling with the spectral element method. , 2007, Medical physics.

[11]  Josselin Garnier,et al.  Wave Propagation and Time Reversal in Randomly Layered Media , 2007 .

[12]  Yuan Xu,et al.  Exact frequency-domain reconstruction for thermoacoustic tomography. I. Planar geometry , 2002, IEEE Transactions on Medical Imaging.

[13]  Human organs dosimetry for transient electromagnetic fields , 1997, 1997 IEEE MTT-S International Microwave Symposium Digest.

[14]  Jin Zhang,et al.  Improving limited-view reconstruction in photoacoustic tomography by incorporating a priori boundary information , 2008, SPIE BiOS.

[15]  R.W.B. Stephens,et al.  IEEE ultrasonics symposium , 1972 .

[16]  Da Xing,et al.  A fast microwave-induced thermoacoustic tomography system for imaging of biological tissues , 2006, International Conference on Photonics and Imaging in Biology and Medicine.

[17]  Heinz Parkus,et al.  Wärmespannungen : infolge stationärer Temperaturfelder , 1953 .

[18]  Tetsushi Biwa,et al.  A pistonless Stirling cooler , 2002 .

[19]  R.A. Kruger,et al.  Thermoacoustic computed tomography of the breast at 434 MHz , 1999, 1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282).

[20]  M. Fink,et al.  Time reversal of ultrasonic fields. I. Basic principles , 1992, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[21]  George Papanicolaou,et al.  Time-reversal: Spatio-temporal focusing and its dependence on channel correlation , 2007 .

[22]  T. D. Mast.  Empirical relationships between acoustic parameters in human soft tissues , 2000 .

[23]  T. C. Guo,et al.  Microwave-Induced Thermoacoustic Effect in Dielectrics and its Coupling to External Medium--A Thermodynamical Formulation , 1984 .

[24]  G. Papanicolaou,et al.  Imaging and time reversal in random media , 2001 .

[25]  K. T. Feldman,et al.  Review of the literature on Rijke thermoacoustic phenomena , 1968 .