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Title
Japanese: 
English:Spatial discrimination of cancer using circular polarization of light scattered by biological tissues 
Author
Japanese: 西沢 望, 河島 眞弥, Al-Qadi, B., 口丸 高弘, 宗片 比呂夫.  
English: Nishizawa, N., Kawashima, S., Al-Qadi, B., Kuchimaru, T., Munekata, H..  
Language English 
Journal/Book name
Japanese:Proceedings of SPIE 
English: 
Volume, Number, Page Vol. 11521        p. 1152114
Published date June 15, 2020 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://doi.org/10.1117/12.2573280
 
DOI https://doi.org/10.1117/12.2573280
Abstract The circular polarization (CP) of light scattered by biological tissues provides valuable information about the structural changes in tissues. We investigate the spatial discrimination of cancer using CP light scattering within the in-plane and along the depth direction. In-plane spatial resolution was investigated using experiments on sliced biological tissues, which show a noticeable difference in polarization values between healthy and cancerous parts in a wide angular range. The resolution in the depth direction is examined with the Monte Carlo calculation method on pseudo-tissues having thin cancerous layers on healthy tissues. The calculation results suggest that the thickness of cancer can be estimated by detecting the degree of circular polarization values with different detection angles. The in-plane and depth resolutions are approximately 0.3 mm and 0.6 mm, respectively.

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