Colon cancer detection by using Poincaré sphere and 2D polarimetric mapping of ex vivo colon samples

Abstract

This work is dedicated to the diagnosis and grading of colon cancer by a combined use of Poincaré sphere and 2D Stokes vector polarimetry mapping approaches. The major challenge consists in exploring the applicability of polarized light for noninvasive screening of the histological abnormalities within the samples of biological tissues. Experimental studies were conducted in ex vivo colon sample, excised after surgical procedure for colon tumor removal of G2-adenocarcinoma lesion. Polarimetric measurements in linear and circular regime were carried via personally developed polarimetric, optical set-up, using supercontinuous fiber laser with irradiation fixed at 635 nm. We apply the Poincaré sphere and two-dimensional Stokes vector scanning approach for screening the corresponding tissue samples. A comparison between linear and circular polarization states is made both for quantitative and qualitative evaluations. It is shown that circular polarization has better diagnostic capabilities than linear polarization, with higher dynamic ranges of the polarimetric parameters and better values of the diagnostic quantities. In addition to the standard polarimetry parameters, utilized as essential diagnostic markers, we apply statistical analysis to obtain more detailed information in frame of the applied diagnostic approach.

Publication DOI: https://doi.org/10.1002/jbio.202000082
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
Additional Information: This is the peer reviewed version of the following article: Ivanov, D., Dremin, V., Bykov, A., Borisova, E., Genova, T., Popov, A., Ossikovski, R., Novikova, T. and Meglinski, I. (2020), Colon cancer detection by using Poincaré sphere and 2D polarimetric mapping of ex vivo colon samples. J. Biophotonics. Accepted Author Manuscript, which has been published in final form at https://doi.org/10.1002/jbio.202000082  This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Uncontrolled Keywords: Poincaré sphere,colon cancer,polarimetric mapping,stokes polarimetry,tissue diagnostics,Chemistry(all),Materials Science(all),Biochemistry, Genetics and Molecular Biology(all),Engineering(all),Physics and Astronomy(all)
Publication ISSN: 1864-0648
Full Text Link:
Related URLs: https://onlinel ... /jbio.202000082 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2020-08-01
Published Online Date: 2020-05-10
Accepted Date: 2020-05-06
Authors: Ivanov, Deyan
Dremin, Viktor
Bykov, Alexander
Borisova, Ekaterina
Genova, Tsanislava
Popov, Alexey
Ossikovski, Razvigor
Novikova, Tatiana
Meglinski, Igor (ORCID Profile 0000-0002-7613-8191)

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