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Proceedings Paper

Noncontacting diffuse VIS-NIR spectroscopy of human skin for evaluation of skin type and time-dependent microcirculation
Author(s): Wolf-Dieter Schmidt; Dieter Fassler; Gabi Zimmermann; Kristin Liebold; Uwe Wollina
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Paper Abstract

Spectroscopic investigations of the VIS-NIR range allow the objective determination of pigmentation, blood microcirculation and water content of human skin. Non- contacting in vivo measurements of the human skin of 50 volunteers reflect the clinical skin type well. Our correlation analysis yields that the red/infrared spectral range can be used for a determination of skin type. The observed strong spectral variations within the same group of skin type are likely based on the high biological variability of human skin and subjective clinically observed skin type. Therefore it can be useful to measure the full spectral range and to calculate a non-observed skin score with multivariate spectral methods. By multivariate analysis a correct classification of remittance spectra can be obtained. Time- depending spectral variations of dermal microcirculation can be measured at defined locations of the body, for instance the dynamics of oxygenation or blood volume in the skin of the fingertip. The cardial, pulmonal and vasomotoric waves of the micro- and macrocirculation are clearly visible at different wavelengths. The spectroscopic informations are important as an objective measure for the skin type evaluation, the penetration behavior of pharmaca, laser surgery, and therapy.

Paper Details

Date Published: 22 November 2000
PDF: 12 pages
Proc. SPIE 4160, Photon Migration, Diffuse Spectroscopy, and Optical Coherence Tomography: Imaging and Functional Assessment, (22 November 2000); doi: 10.1117/12.407614
Show Author Affiliations
Wolf-Dieter Schmidt, Gesellschaft zur Foerderung von Medizin-, Bio- und Umwelttechnologien e.V. (Germany)
Dieter Fassler, Gesellschaft zur Foerderung von Medizin-, Bio- und Umwelttechnologien e.V. (Germany)
Gabi Zimmermann, Asclepion Meditec GmbH (Germany)
Kristin Liebold, Friedrich-Schiller-Univ. Jena (Germany)
Uwe Wollina, Friedrich-Schiller-Univ. Jena (Germany)


Published in SPIE Proceedings Vol. 4160:
Photon Migration, Diffuse Spectroscopy, and Optical Coherence Tomography: Imaging and Functional Assessment
Stefan Andersson-Engels; James G. Fujimoto, Editor(s)

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