Modeling photon propagation in biological tissues using a generalized Delta-Eddington phase function

被引：32
|
作者：
Cong, W.
Shen, H.
Cong, A.
Wang, Y.
Wang, G.
机构：
[1] Virginia Polytech Inst & State Univ, Sch Biomed Engn & Sci, Biomed Imaging Div, Blacksburg, VA 24061 USA
[2] Virginia Polytech Inst & State Univ, Dept Elect & Comp Engn, Computat Bioinformat & Bioimaging Lab, Arlington, VA 22203 USA
来源：
PHYSICAL REVIEW E | 2007年 / 76卷 / 05期
关键词：
D O I：
10.1103/PhysRevE.76.051913
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Photon propagation in biological tissue is commonly described by the radiative transfer equation, while the phase function in the equation represents the scattering characteristics of the medium and has significant influence on the precision of solution and the efficiency of computation. In this work, we present a generalized Delta-Eddington phase function to simplify the radiative transfer equation to an integral equation with respect to photon fluence rate. Comparing to the popular diffusion approximation model, the solution of the integral equation is highly accurate to model photon propagation in the biological tissue over a broad range of optical parameters. This methodology is validated by Monte Carlo simulation.
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页数：5
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