Discriminate Analysis of Colorimetric Characteristics in Skin Reaction Caused by a Patch Test

Autor:	Masayuki Inoue, Fumiaki Orikasa, Tsukasa Shioyama, Shigemi Ishikawa, Motoko Matsuda, Kazutoshi Furukawa, Kanji Ishibashi
Rok vydání:	1996
Předmět:	Color difference business.industry Chemistry Positive reaction Patch test General Medicine Linear discriminant analysis Reflectivity Metal allergy Skin reaction Optics Skin color business Biomedical engineering
Zdroj:	Nihon Hotetsu Shika Gakkai Zasshi. 40:508-511
ISSN:	1883-177X 0389-5386
DOI:	10.2186/jjps.40.508
Popis:	Patch test has been used to determine the existance of metal allergy, and the severity thereof has been determined by the change in skin color.In order to obtain an accurate judgment of the change in skin color, the statistical formulation was calculated based on colorimetric investigation into 9 kinds of color characteristics: 1) Spectral reflectance curve, 2) Color difference, 3) Depth of shade, 4) CIE Lab-L*, 5) CIE Lab-a*, 6) CIE Lab-b*, 7) Munsell-H, 8) Munsell-C, and 9) Munsell-V.The rate of the agreement with statistical judgment and that of conventional subjective was 100% in positive reaction, and ranged from 90% to 94% in negative reaction.In conclusion, the original statistical formulation based on colorimetric characteristics showed high level accuracy for determining the change in skin color reaction by the patch test.
Databáze:	OpenAIRE
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