| DOI | Trouver le DOI : https://doi.org/10.1117/12.460783 |
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| Auteur | Rechercher : Attas, Michael1; Rechercher : Sowa, Michael G.1; Rechercher : Posthumus, Trevor B.1; Rechercher : Schattka, Bernhard J.1; Rechercher : Mantsch, Henry H.1; Rechercher : Zhang, Shuliang L. |
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| Affiliation | - Conseil national de recherches du Canada. Institut du biodiagnostic du CNRC
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| Format | Texte, Chapitre de livre |
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| Conférence | International Symposium on Biomedical Optics, January 19, 2002, San Jose, CA, USA |
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| Sujet | spectroscopic imaging; near infrared; skin hydration; principal components analysis; fiber optic spectrometer |
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| Résumé | Near-infrared spectroscopic methods have been developed to determine the degree of hydration of human skin in vivo. Reflectance spectroscopic imaging was used to investigate the distribution of skin moisture as a function of location. A human study in a clinical setting has generated quantitative data showing the effects of a drying agent and a moisturizer on delineated regions of the forearms of eight volunteers. Two digital imaging systems equipped with liquid-crystal tunable filters were used to collect stacks of monochromatic images at 10-nm intervals over the wavelength bands 650-1050 nm and 960-1700 nm. Images generated from measurements of water absorption-band areas at three different near-IR wavelengths (970, 1200, and 1450 nm) showed obvious differences in the apparent distribution of water in skin. Changes resulting from the skin treatments were much more evident in the 1200-nm and 1450-nm images than in the 970-nm ones. The variable sensitivity of the method at different wavelengths has been interpreted as being the result of different penetration depths of the infrared light used in the reflectance studies. Ex-vivo experiments with pigskin have provided evidence supporting the relationship between wavelength and penetration depth. Combining the hydration results from several near-IR water bands allows additional information on hydration depth to be obtained. |
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| Date de publication | 2002-03-28 |
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| Série | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23000787 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 28e4e59f-a5f8-4fc1-a78a-f4b0d40b283f |
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| Enregistrement créé | 2016-09-26 |
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| Enregistrement modifié | 2020-03-03 |
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