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Proceedings Paper

Light-scattering model for biological tissue
Author(s): Shusen Xie; Hui Li; Lei Lin
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Paper Abstract

We suggest that the optical model of a tissue is constructed by different size particles and the corresponding density in a liquid just like some phantoms of tissues. Due to the fact that the nonhomogeneous dimension is about the order of several and hundred micrometers, the Fraunhofer diffraction and process are applicable to biological tissue. We define n(r) as the number of particles per unit volume in tissue with radiuses between r and r + d r, i.e. n(r) is an unnormalized probability density function. We have verified that all of scattering properties of tissue can be obtained as long as the equivalent particle size distribution function n(r) is measured. In particular, the relation between (mu) s and S((theta) ) is dependent on the n(r). The equivalent particle size distribution is feasible for experimental methods and techniques, as well as necessary for scattering principle. Furthermore, the equivalent particle size distribution provide not only a new understanding about the scattering properties of tissue but also a new approach to obtain the scattering coefficient and phase function. In addition, this scheme is helpful to design more precision tissue-simulating phantoms.

Paper Details

Date Published: 13 June 2000
PDF: 5 pages
Proc. SPIE 3914, Laser-Tissue Interaction XI: Photochemical, Photothermal, and Photomechanical, (13 June 2000); doi: 10.1117/12.388074
Show Author Affiliations
Shusen Xie, Fujian Teachers Univ. (China)
Hui Li, Fujian Teachers Univ. (China)
Lei Lin, Fujian Teachers Univ. (China)


Published in SPIE Proceedings Vol. 3914:
Laser-Tissue Interaction XI: Photochemical, Photothermal, and Photomechanical
Jeffrey O. Hollinger; Donald Dean Duncan; Jeffrey O. Hollinger; Donald Dean Duncan; Steven L. Jacques, Editor(s)

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