Contact pressure–aided spectroscopy

Maksimilijan Bregar; Miran Bürmen; Uros Aljancic; Blaž Cugmas; Franjo Pernuš; Boštjan Likar

doi:10.1117/1.JBO.19.2.020501

21 February 2014 Contact pressure–aided spectroscopy

Maksimilijan Bregar, Miran Bürmen, Uros Aljancic, Blaž Cugmas, Franjo Pernuš, Boštjan Likar

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Journal of Biomedical Optics, Vol. 19, Issue 2, 020501 (February 2014). https://doi.org/10.1117/1.JBO.19.2.020501

Abstract

Contact pressure induced by manually operated fiber optic probes can significantly affect the optical properties of the studied tissue. If the contact pressure and the changes in optical properties are measured properly, then the complementary information can be used to obtain additional insight into the tissue physiology. However, as reliable assessment of the contact pressure in the existing diffuse reflectance setups is difficult, the impact of contact pressure is usually neglected or considered as a source of errors. We introduce a measurement system for controlled application of contact pressure and for the acquisition of diffuse reflectance spectra, which is suitable for in vivo studies and for overcoming the limitations of the existing measurement setups. A spectral-contact-pressure plane is proposed to present the combined information, highlighting the unique tissue response to the applied pressure.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Maksimilijan Bregar, Miran Bürmen, Uros Aljancic, Blaž Cugmas, Franjo Pernuš, and Boštjan Likar "Contact pressure–aided spectroscopy," Journal of Biomedical Optics 19(2), 020501 (21 February 2014). https://doi.org/10.1117/1.JBO.19.2.020501

Published: 21 February 2014

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