Automatic amending of the tattoo sensor fluorescence localization by refractive index matching

Dmitry Y. Churmakov; Igor V. Meglinski; Douglas A. Greenhalgh

doi:10.1117/12.500179

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8 October 2003 Automatic amending of the tattoo sensor fluorescence localization by refractive index matching

Dmitry Y. Churmakov, Igor V. Meglinski, Douglas A. Greenhalgh

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Proceedings Volume 5141, Diagnostic Optical Spectroscopy in Biomedicine II; (2003) https://doi.org/10.1117/12.500179
Event: European Conferences on Biomedical Optics 2003, 2003, Munich, Germany

Abstract

Fluorescence diagnostic techniques are notable amongst many other optical methods, as they offer high sensitivity and non-invasive measurements of tissue properties. However, a combination of multiple scattering and physical heterogeneity of biological tissues hampers the interpretation of the fluorescence measurements. The analyses of the spatial distribution of endogenous and exogenous fluorophores excitations within tissues and their contribution to the detected signal localization are essential for many applications. We have developed a novel Monte Carlo technique that gives a graphical perception of how the excitation and fluorescence detected signal are localized in tissues. Our model takes into account spatial distribution of fluorophores and their quantum yields. We demonstrate that matching of the refractive indices of ambient medium and topical skin layer improves spatial localization of the detected fluorescence signal within the tissue. This result is consistent with the recent conclusion that administering biocompatible agents results in higher image contrast.

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Dmitry Y. Churmakov, Igor V. Meglinski, and Douglas A. Greenhalgh "Automatic amending of the tattoo sensor fluorescence localization by refractive index matching", Proc. SPIE 5141, Diagnostic Optical Spectroscopy in Biomedicine II, (8 October 2003); https://doi.org/10.1117/12.500179

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