A reconstruction algorithm for thermoacoustic tomography with compensation for acoustic speed heterogeneity

Physics in Medicine and Biology
Chi Zhang, Yuanyuan Wang

Abstract

An inverse reconstruction algorithm for thermoacoustic tomography (TAT) is proposed with the compensation for the acoustic speed heterogeneity. Not requiring the prior knowledge of the acoustic speed distribution like most other algorithms, this algorithm utilizes the correlation information between thermoacoustic signals to compensate for the acoustic heterogeneity. The absorbed energy density is reconstructed on the basis of a corrected time-domain formula. Computer simulations are carried out to validate the algorithm. It is shown that the algorithm has a good precision within the acoustic speed variation of 10%, strong robustness to random data noises and good computational efficiency compared to other model-based methods. Therefore, the algorithm may be used in TAT of biological soft tissues, in which the acoustic speed variation is normally within 10%.

References

Oct 1, 1995·Medical Physics·R A KrugerC R Appledorn
Aug 29, 2003·IEEE Transactions on Bio-medical Engineering·Minghua XuLihong V Wang
Oct 17, 2003·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Yuan Xu, Lihong V Wang
Feb 15, 2005·IEEE Transactions on Medical Imaging·Mark A AnastasioLihong V Wang
Apr 13, 2005·IEEE Transactions on Medical Imaging·Joël J NiederhauserMartin Frenz
Apr 12, 2006·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Huabei JiangXuejun Gu
Jul 11, 2006·Nature Biotechnology·Hao F ZhangLihong V Wang
Dec 7, 2006·Physics in Medicine and Biology·Xing Jin, Lihong V Wang
Nov 13, 2007·Physical Review Letters·Hui FangLihong V Wang
Nov 21, 2007·IEEE Transactions on Bio-medical Engineering·Bin GuoMark Sheplak

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Citations

Dec 13, 2012·Medical Physics·Jithin JoseSrirang Manohar
Jul 6, 2014·Medical Physics·X Luís Deán-BenDaniel Razansky
Sep 5, 2013·IEEE Transactions on Medical Imaging·Tanja TarvainenSimon R Arridge
Sep 30, 2010·IEEE Transactions on Medical Imaging·X Luís Dean-BenVasilis Ntziachristos
Mar 11, 2015·Ultrasonography·Jeesu KimChulhong Kim
Apr 24, 2016·The Journal of the Acoustical Society of America·Jenni TickTanja Tarvainen
Mar 25, 2015·Journal of Biomedical Optics·Aki PulkkinenTanja Tarvainen
Aug 30, 2011·Physics in Medicine and Biology·X Luís Deán-BenVasilis Ntziachristos
Dec 29, 2020·Photoacoustics·Manxiu CuiCheng Ma
Nov 25, 2019·Biomedical Physics & Engineering Express·Jenni TickTanja Tarvainen

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