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Proceedings Paper

Physical modeling of human skin optical properties using milk and erythrocytes mixtures
Author(s): Alexander B. Pravdin; Sergei R. Utz; Vyacheslav I. Kochubey
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Paper Abstract

We offer a two-layer dermis-like model phantom with controlled concentration of absorbers and scatterers; namely, the mixture of whole milk diluted with isotonic solution and suspension of washed human erythrocytes -- as one layer, and teflon base -- as another. The optimum milk dilution was determined, and wavelength dependencies of phantom remittance (R) over the range 480 - 680 nm were obtained. We use the mixtures with physiological concentrations of erythrocytes which corresponded to 2 - 18% per volume blood content in human papillary dermis and upper blood plexus. Phantom remittance spectra for the cases of 2% and 4% blood content virtually coincide with remittance spectra of normal and erythema human skin. Collimated transmittance (T) of blood-milk layer was also measured. At 500 nm we estimated the range of linearity of D and D' (D equals $min1gT, D' equals -1gR) dependence on blood content: offset from linearity was observed near 5 - 6% and 10% of blood, respectively.

Paper Details

Date Published: 27 December 1995
PDF: 6 pages
Proc. SPIE 2627, Optical Biopsies, (27 December 1995); doi: 10.1117/12.228896
Show Author Affiliations
Alexander B. Pravdin, Saratov State Univ. (Russia)
Sergei R. Utz, Institute of Rural Hygiene (Russia)
Vyacheslav I. Kochubey, Saratov State Univ. (Russia)

Published in SPIE Proceedings Vol. 2627:
Optical Biopsies
Rinaldo Cubeddu; Serge R. Mordon; Katarina Svanberg, Editor(s)

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