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Proceedings Paper

Signal and noise in ultrasound-modulated optical tomography: a Monte Carlo study
Author(s): Gang Yao; Lihong V. Wang
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Paper Abstract

Ultrasound-modulated optical tomography in inhomogeneous scattering media was studied using a Monte Carlo modeling technique. The contributions from two different modulation mechanisms were included in the simulation. The differences between embedded absorption and scattering objects in the ultrasound-modulated optical signals were compared. The effects of neighboring inhomogeneity and background optical properties on the ultrasound-modulated optical signals were also studied. We analyzed the signal-to-noise ratio in the experiment and found that the major noise source is the speckle noise caused by small particle movement within the biological tissue sample. This effect was studied by incorporating a Brownian motion factor in the simulation.

Paper Details

Date Published: 12 July 2004
PDF: 8 pages
Proc. SPIE 5320, Photons Plus Ultrasound: Imaging and Sensing, (12 July 2004); doi: 10.1117/12.532847
Show Author Affiliations
Gang Yao, Univ. of Missouri/Columbia (United States)
Lihong V. Wang, Texas A&M Univ. (United States)


Published in SPIE Proceedings Vol. 5320:
Photons Plus Ultrasound: Imaging and Sensing
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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