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International Journal of Photoenergy
Volume 2014, Article ID 230829, 7 pages
http://dx.doi.org/10.1155/2014/230829
Research Article

Two-Stage Analysis on Models for Quantitative Differentiation of Early-Pathological Bladder States

1Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilov Street 38, Moscow 119991, Russia
2Université de Lorraine, CRAN, UMR 7039, 2 avenue de la forêt de Haye, 54516 Vandoeuvre-lès-Nancy Cedex, France
3CNRS, CRAN, UMR 7039, 54516 Vandoeuvre-lès-Nancy, France

Received 6 November 2013; Accepted 15 January 2014; Published 27 February 2014

Academic Editor: Alexander Douplik

Copyright © 2014 Nina Kalyagina 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.

Abstract

A mathematical simulation method was developed for visualization of the diffuse reflected light on a surface of 3-layered models of urinary bladder wall. Five states, from normal to precancerous, of the urinary bladder epithelium were simulated. With the use of solutions of classical electrodynamics equations, scattering coefficients and asymmetry parameters of the bladder epithelium were found in order to perform Monte Carlo calculations. The results, compared with the experimental studies, has revealed the influence of the changes in absorption and scattering properties on diffuse-reflectance signal distributions on the surfaces of the modelled media.