Simulations of a spatially resolved reflectometry signal from a highly scattering three-layer medium applied to the problem of glucose sensing in human skin

Journal Article · Sun Dec 31 00:00:00 EST 2006 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2006V036N12ABEH013457· OSTI ID:21459999

Bykov, A V; Kirillin, M Yu; Priezzhev, A V ^[1]; Myllylae, Risto ^[2]

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1. Department of Physics, M.V. Lomonosov Moscow State University, Moscow (Russian Federation)
2. Department of Electrical and Information Engineering, Optoelectronics and Measurement Techniques Laboratory, University of Oulu (Finland)

The possibility of using spatially resolved reflectometry (SRR) at a wavelength of 820 nm to detect changes in the optical properties of a highly scattering layered random medium simulating a biological tissue caused by changes in the glucose level is analysed. Model signals from a three-layer biological tissue phantom consisting of two skin layers and a blood layer located between them are obtained by the Monte-Carlo method. It was assumed that variations in the glucose level induce variations in the optical parameters of the blood layer and the bottom skin layer. To analyse the trajectories of photons forming the SRR signal, their scattering maps are obtained. The ratio of the photon path in layers sensitive to the glucose level to the total path in the medium was used as a parameter characterising these trajectories. The relative change in the reflected signal caused by a change in the glucose concentration is analysed depending on the distance between a probe radiation source and a detector. It is shown that the maximum relative change in the signal (about 7%) takes place for the source - detector separation in the range from 0.3 to 0.5 mm depending on the model parameters. (special issue devoted to multiple radiation scattering in random media)

• OSTI ID: 21459999
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 36, Issue 12; Other Information: DOI: 10.1070/QE2006v036n12ABEH013457; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BLOOD
GLUCOSE
LAYERS
MONTE CARLO METHOD
OPTICAL PROPERTIES
PHANTOMS
PHOTONS
RADIATION SOURCES
REFLECTION
SCATTERING
SIGNALS
SKIN
SPATIAL RESOLUTION
TRAJECTORIES
WAVELENGTHS
ALDEHYDES
BIOLOGICAL MATERIALS
BODY
BODY FLUIDS
BOSONS
CALCULATION METHODS
CARBOHYDRATES
ELEMENTARY PARTICLES
HEXOSES
MASSLESS PARTICLES
MATERIALS
MOCKUP
MONOSACCHARIDES
ORGANIC COMPOUNDS
ORGANS
PHYSICAL PROPERTIES
RESOLUTION
SACCHARIDES
STRUCTURAL MODELS