| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
|
|
|
|
A Modified Monte Carlo Model of Speckle Tracking of Shear Wave Induced by Acoustic Radiation Force for Acousto-Optic Elasticity Imaging |
| Yu-Jiao Li, Wei-Jun Huang, Feng-Chao Ma, Rui Wang, Ming-Zhu Lu**, Ming-Xi Wan** |
Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049
|
|
| Cite this article: |
|
Yu-Jiao Li, Wei-Jun Huang, Feng-Chao Ma et al 2016 Chin. Phys. Lett. 33 114301 |
|
|
|
|
Abstract A modified Monte Carlo model of speckle tracking of shear wave propagation in scattering media is proposed. The established Monte Carlo model mainly concerns the variations of optical electric field and speckle. The two-dimensional intensity distribution and the time evolution of speckles in different probe locations are obtained. The fluctuation of speckle intensity tracks the acoustic-radiation-force shear wave propagation, and especially the reduction of speckle intensity implies attenuation of shear wave. Then, the shear wave velocity is estimated quantitatively on the basis of the time-to-peak algorithm and linear regression processing. The results reveal that a smaller sampling interval yields higher estimation precision and the shear wave velocity is estimated more efficiently by using speckle intensity difference than by using speckle contrast difference according to the estimation error. Hence, the shear wave velocity is estimated to be 2.25 m/s with relatively high accuracy for the estimation error reaches the minimum (0.071).
|
|
|
Received: 25 June 2016
Published: 28 November 2016
|
|
|
|
|
| Fund: Supported by the National Key Scientific Instrument and Equipment Development Projects of China under Grant No 81127901, and the National Natural Science Foundation of China under Grant Nos 61372017 and 30970828. |
|
|
|
| [1] | Daoudi K, Boccara A C and Bossy E 2009 Appl. Phys. Lett. 94 154103 | | [2] | Elson D S, Li R, Dunsby C, Eckersley R and Tang M X 2011 Interface Focus 1 632 | | [3] | Li R, Elson D S, Dunsby C, Eckersley R and Tang M X 2011 Opt. Express 19 7299 | | [4] | Yang S H, Yin G Z and Xing D 2010 Chin. Phys. Lett. 27 094302 | | [5] | Wang L V 2001 Phys. Rev. Lett. 87 043903 | | [6] | Wang L V 2004 Dis. Markers 19 123 | | [7] | Sarvazyan A P, Rudenko O V, Swanson S D, Fowlkes J B and Emelianov S Y 1998 Ultrasound Med. Biol. 24 1419 | | [8] | Rudenko O V, Sarvazyan A P and Emelianov S Y 1996 J. Acoust. Soc. Am. 99 2791 | | [9] | Lu M Z, Liu X J, Shi Y, Kang Y N, Guan Y B and Wan M X 2012 Chin. Phys. Lett. 29 014301 | | [10] | Lu M Z, Wu Y P, Shi Y, Guan Y B, Guo X L and Wan M X 2012 Chin. Phys. Lett. 29 124302 | | [11] | Leung T S and Powell S 2010 J. Biomed. Opt. 15 055007 | | [12] | Bossy E, Funke A R, Daoudi K, Boccara A C, Tanter M and Fink M 2007 Appl. Phys. Lett. 90 174111 | | [13] | Ju Z P, Cao W F and Liu X W 2009 Acta Phys. Sin. 58 174 (in Chinese) | | [14] | Cheng Y, Li R, Li S, Dunsby C, Eckersley R J, Elson D S and Tang M X 2012 Ultrasound Med. Biol. 38 1637 |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
