Detecting cervical cancer progression through extracted intrinsic fluorescence and principal component analysis

Seema Devi; Prasanta K. Panigrahi; Asima Pradhan

doi:10.1117/1.JBO.19.12.127003

11 December 2014 Detecting cervical cancer progression through extracted intrinsic fluorescence and principal component analysis

Seema Devi, Prasanta K. Panigrahi, Asima Pradhan

Author Affiliations +

Journal of Biomedical Optics, Vol. 19, Issue 12, 127003 (December 2014). https://doi.org/10.1117/1.JBO.19.12.127003

Abstract

Intrinsic fluorescence spectra of the human normal, cervical intraepithelial neoplasia 1 (CIN1), CIN2, and cervical cancer tissue have been extracted by effectively combining the measured polarized fluorescence and polarized elastic scattering spectra. The efficacy of principal component analysis (PCA) to disentangle the collective behavior from smaller correlated clusters in a dimensionally reduced space in conjunction with the intrinsic fluorescence is examined. This combination unambiguously reveals the biochemical changes occurring with the progression of the disease. The differing activities of the dominant fluorophores, collagen, nicotinamide adenine dinucleotide, flavins, and porphyrin of different grades of precancers are clearly identified through a careful examination of the sectorial behavior of the dominant eigenvectors of PCA. To further classify the different grades, the Mahalanobis distance has been calculated using the scores of selected principal components.

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Seema Devi, Prasanta K. Panigrahi, and Asima Pradhan "Detecting cervical cancer progression through extracted intrinsic fluorescence and principal component analysis," Journal of Biomedical Optics 19(12), 127003 (11 December 2014). https://doi.org/10.1117/1.JBO.19.12.127003

Published: 11 December 2014

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KEYWORDS

Luminescence

Tissues

Scattering

Principal component analysis

Collagen

Cervical cancer

Tissue optics

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