1 September 2008 Stochastic decomposition method for modeling the scattered signal reflected of mucosal tissues
Author Affiliations +
J. of Biomedical Optics, 13(5), 054039 (2008). doi:10.1117/1.2982527
The aim of this work is to draw the attention of the biophotonics community to a stochastic decomposition method (SDM) to potentially model 2-D scans of light scattering data from epithelium mucosa tissue. The emphasis in this work is on the proposed model and its theoretical pinning and foundation. Unlike previous works that analyze scattering signal at one spot as a function of wavelength or angle, our method statistically analyzes 2-D scans of light scattering data over an area. This allows for the extraction of texture parameters that correlate with changes in tissue morphology, and physical characteristics such as changes in absorption and scattering characteristics secondary to disease, information that could not be revealed otherwise. The method is tested on simulations, phantom data, and on a limited preliminary in-vitro animal experiment to track mucosal tissue inflammation over time, using the area Az under receiver operating characteristics (ROC) curve as a performance measure. Combination of all the features results in an Az value up to 1 for the simulated data, and Az>0.927 for the phantom data. For the tissue data, the best performances for differentiation between pairs of various levels of inflammation are 0.859, 0.983, and 0.999.
Fernand S. Cohen, Ezgi Taslidere, Dilip S. Hari, Sreekant Murthy, "Stochastic decomposition method for modeling the scattered signal reflected of mucosal tissues," Journal of Biomedical Optics 13(5), 054039 (1 September 2008). http://dx.doi.org/10.1117/1.2982527


Light scattering


Optical spheres


Stochastic processes

Data modeling

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