Cong, Alexander X.Shen, HaiouCong, WenxiangWang, Ge2017-09-182017-09-182007-08-29Alexander X. Cong, Haiou Shen, Wenxiang Cong, and Ge Wang, “Improving the Accuracy of the Diffusion Model in Highly Absorbing Media,” International Journal of Biomedical Imaging, vol. 2007, Article ID 38168, 6 pages, 2007. doi:10.1155/2007/38168http://hdl.handle.net/10919/79073The diffusion approximation of the Boltzmann transport equation is most commonly used for describing the photon propagation in turbid media. It produces satisfactory results in weakly absorbing and highly scattering media, but the accuracy lessens with the decreasing albedo. In this paper, we presented a method to improve the accuracy of the diffusion model in strongly absorbing media by adjusting the optical parameters. Genetic algorithm-based optimization tool is used to find the optimal optical parameters. The diffusion model behaves more closely to the physical model with the actual optical parameters substituted by the optimized optical parameters. The effectiveness of the proposed technique was demonstrated by the numerical experiments using the Monte Carlosimulation data as measurements.application/pdfenCreative Commons Attribution 4.0 InternationalArticle - Refereed2017-09-18Copyright © 2007 Alexander X. Cong et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.https://doi.org/10.1155/2007/38168