Fiche publication
Date publication
février 2007
Auteurs
Membres identifiés du Cancéropôle Est :
Pr HUMBERT Philippe
Tous les auteurs :
Petitjean A, Sainthillier JM, Mac-Mary S, Muret P, Closs B, Gharbi T, Humbert P
Lien Pubmed
Résumé
BACKGROUND/PURPOSE: The aim of this study was to validate an optic device used to measure the quantity of light reflected by the skin, which depends on the brightness of the skin. METHODS: This apparatus gives three parameters, called Complexion/diffusion (Cd), Cr (Complexion/reflection) and Complexion/specular position (Csp). Measurements were carried out on the forehead (slightly rounded surface) and the cheekbone (angular surface). To estimate the repeatability and the reproducibility of each parameter, two female subjects (one with a dull complexion and the other with a glowing complexion) and three operators participated in the study. To investigate repeatability, each operator performed 10 consecutive measurements on both zones. To investigate inter-investigator reproducibility, the operators performed the measurements alternately. To investigate day-to-day reproducibility, these measures were achieved during three visits at a 2-day interval, at D1, D3 and D5. To estimate the sensitivity and the specificity, 30 females participated in the study (15 in the dull complexion group and 15 in the glowing complexion group). RESULTS: Cd was repeatable (variation coefficient 0.05) but not inter-investigators reproducible (generally P
Référence
Skin Res Technol. 2007 Feb;13(1):2-8.
