| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Modeling of Nonlinear Propagation in Multi-layer Biological Tissues for Strong Focused Ultrasound |
| FAN Ting-Bo, LIU Zhen-Bo, ZHANG Zhe, ZHANG Dong, GONG Xiu-Fen |
| Institute of Acoustics, Key Laboratory of Modern Acoustics (Ministry of Education), Nanjing University, Nanjing 210093 |
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| Cite this article: |
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FAN Ting-Bo, LIU Zhen-Bo, ZHANG Zhe et al 2009 Chin. Phys. Lett. 26 084302 |
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Abstract A theoretical model of the nonlinear propagation in multi-layered tissues for strong focused ultrasound is proposed. In this model, the spheroidal beam equation (SBE) is utilized to describe the nonlinear sound propagation in each layer tissue, and generalized oblique incidence theory is used to deal with the sound transmission between two layer tissues. Computer simulation is performed on a fat-muscle-liver tissue model under the irradiation of a 1MHz focused transducer with a large aperture angle of 35°. The results demonstrate that the tissue layer would change the amplitude of sound pressure at the focal region and cause the increase of side petals.
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| Keywords:
43.80.+p
43.25.+y
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Received: 11 February 2009
Published: 30 July 2009
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[1] Hill C and Ter Haar G 1995 Br. J. Radiol. 681296
[2]Leslie T A and Kennedy J E 2006 Ultrasound Q 22263
[3]Naze Tj{\otta J and Tj{\otta S 1993 Acta Acustica 1 69
[4]Hamilton M F and Blackstock D T 1998 NonlinearAcoustics (New York: Academic) chap 3 p 41
[5]Naze Tj{\otta J, Tj{\otta S and Vefring E H 1991 J.Acoust. Soc. Am. 89 1017
[6]Kamakura T, Ishiwata T and Matsuda K 2000 J. Acoust.Soc. Am. 107 3035
[7]Liu M H, Zhang D and Gong X F 2007 Chin. Phys. Lett. 24 2267
[8]Liu X Z, Li J L, Yin C, Gong X F, Zhang D and Xue H H 2006 Phys. Lett. A 362 50
[9]Li Y D, Chen Q and Zagzebski J 2004 IEEE Trans. UFFC 51 146
[10]Makin I R, Aerkiou M A and Hamilton M F 2000 J.Acoust. Soc. Am. 108 1505
[11]Yang X and Cleveland R O 2005 J. Acoust. Soc. Am. 117 113
[12]Christonhor P T and Paker K J 1991 J. Acoust. Soc.Am. 90 507
[13]Williams R, Cherin E, Lam T Y J, Tavakkoli J, Zemp R J andFoster F S 2006 Phys. Med. Biol. 51 5809
[14]Hallaj I M, Clevel R O and Hynynen K 2001 J. Acoust.Soc. Am. 109 2245 |
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