Optical coefficients as tools for increasing the optical coherence tomography contrast for breast cancer margin detection

E. V. Gubarkova; A. A. Moiseev; E. B. Kiseleva; D. A. Vorontsov; S. S. Kuznetsov; K. A. Achkasova; K. S. Yashin; G. V. Gelikonov; M. A. Sirotkina; N. D. Gladkova

doi:10.1117/12.2578623

5 March 2021 Optical coefficients as tools for increasing the optical coherence tomography contrast for breast cancer margin detection

E. V. Gubarkova, A. A. Moiseev, E. B. Kiseleva, D. A. Vorontsov, S. S. Kuznetsov, K. A. Achkasova, K. S. Yashin, G. V. Gelikonov, M. A. Sirotkina, N. D. Gladkova

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Proceedings Volume 11630, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV; 116301R (2021) https://doi.org/10.1117/12.2578623
Event: SPIE BiOS, 2021, Online Only

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Abstract

The aim of this study was to evaluate the application of attenuation coefficients calculated from the cross-polarization optical coherence tomography (CP OCT) data for differentiation of breast cancer from non-tumorous breast tissues. For this purpose, surgically obtained breast specimens from 45 patients were examined using CP OCT in order to construct color-coded en-face OCT maps based on calculation of three optical coefficients (the commonly used rate of attenuation in the co- polarization channel; and, additionally, the attenuation in the cross- polarization channel; and the interchannel attenuation difference). It was shown that the use of these optical coefficients significantly increased the amount of obtained information from the OCT data in comparison with unprocessed images, enabling objective quantification for differentiating non-tumorous and tumorous tissue (adipose tissue, normal stroma, tumor stroma and agglomerates of tumor cells). The attenuation in the cross- polarization channel and the interchannel attenuation difference provided greater contrast for the visualization of the different breast cancer structures compared to the attenuation coefficient in the co- polarization channel. The findings of this study suggest that assessment of CP OCT images of breast cancer based on optical coefficients calculation may in perspective enable real-time feedback about accurate resection margin in patient with breast cancer to the surgeon.

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E. V. Gubarkova, A. A. Moiseev, E. B. Kiseleva, D. A. Vorontsov, S. S. Kuznetsov, K. A. Achkasova, K. S. Yashin, G. V. Gelikonov, M. A. Sirotkina, and N. D. Gladkova "Optical coefficients as tools for increasing the optical coherence tomography contrast for breast cancer margin detection", Proc. SPIE 11630, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXV, 116301R (5 March 2021); https://doi.org/10.1117/12.2578623

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