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Journal of Biomedical Optics

Influence of probe pressure on diffuse reflectance spectra of human skin measured in vivo
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Paper Abstract

Mechanical pressure superficially applied on the human skin surface by a fiber-optic probe influences the spatial distribution of blood within the cutaneous tissues. Upon gradual load of weight on the probe, a stepwise increase in the skin reflectance spectra is observed. The decrease in the load follows the similar inverse staircase-like tendency. The observed stepwise reflectance spectra changes are due to, respectively, sequential extrusion of blood from the topical cutaneous vascular beds and their filling afterward. The obtained results are confirmed by Monte Carlo modeling. This implies that pressure-induced influence during the human skin diffuse reflectance spectra measurements in vivo should be taken into consideration, in particular, in the rapidly developing area of wearable gadgets for real-time monitoring of various human body parameters.

Paper Details

Date Published: 20 November 2017
PDF: 4 pages
J. Biomed. Opt. 22(11) 110504 doi: 10.1117/1.JBO.22.11.110504
Published in: Journal of Biomedical Optics Volume 22, Issue 11
Show Author Affiliations
Alexey P. Popov, Univ. of Oulu (Finland)
ITMO Univ. (Russia)
Alexander V. Bykov, Univ. of Oulu (Finland)
ITMO Univ. (Russia)
Igor V. Meglinski, Univ. of Oulu (Finland)
ITMO Univ. (Russian Federation)
Irkutsk State Univ. (Russian Federation)


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