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Journal of Biomedical Optics

Characterization and three-dimensional localization of cancerous prostate tissue using backscattering scanning polarization imaging and independent component analysis
Author(s): Yang Pu; Wubao Wang; Guicheng Tang; Robert Alfano; Min Xu; James A. Eastham
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Paper Abstract

Characterization and three-dimensional (3-D) localization of human cancerous prostate tissue embedded in normal prostate tissue were demonstrated using backscattering scanning polarization imaging and an inverse imaging reconstruction algorithm, optical tomography using independent component analysis (OPTICA). Two-dimensional (2-D) backscattering images of a prostate tissue sample illuminated with a scanning laser beam were measured with a CCD camera to obtain multiple angular views of the target embedded inside the tissue. The recorded sets of 2-D images were used to determine the existence and 3-D location of the cancerous prostate tissue using the algorithm. The difficulty arises in the backscattering geometry because the profile of the incident beam and the surface property of the tissue sample appreciably affect the spatial distribution of the backscattered light. This challenge was addressed by: (1) synthesizing a "clean" background image of the host medium; and (2) numerically marching the propagation of the scattered light from the hidden target to the surface of the tissue sample until matching the retrieved independent component. The OPTICA algorithm was improved specifically for the backscattering model, and used to obtain 3-D locations of the cancerous tissue embedded in normal host tissue. The retrieved results were found in good agreement with the known 3-D positions of the cancerous tissue.

Paper Details

Date Published: 14 August 2012
PDF: 9 pages
J. Biomed. Opt. 17(8) 081419 doi: 10.1117/1.JBO.17.8.081419
Published in: Journal of Biomedical Optics Volume 17, Issue 8
Show Author Affiliations
Yang Pu, The City College of New York (United States)
Wubao Wang, The City College of New York (United States)
Guicheng Tang, The City College of New York (United States)
Robert Alfano, The City College of New York (United States)
Min Xu, Fairfield Univ. (United States)
James A. Eastham, Memorial Sloan-Kettering Cancer Ctr. (United States)


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