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Objective and quantitative evaluation of scar color using the l*a*b* color coordinates

Title
Objective and quantitative evaluation of scar color using the l*a*b* color coordinates
Authors
Cheon Y.W.Lee W.J.Rah D.K.
Ewha Authors
전영우
Issue Date
2010
Journal Title
Journal of Craniofacial Surgery
ISSN
1049-2275JCR Link
Citation
Journal of Craniofacial Surgery vol. 21, no. 3, pp. 679 - 684
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Conference Paper
Abstract
Scar color evaluation by clinical physicians has been based on subjective judgments. The purpose of this study was to investigate the application of a novel photographic analysis to produce an objective and quantitative measurement of scar color using the L*a*b* color coordinates.Three plastic surgeons evaluated photos of 207 scars using the clinical scar assessment scale developed by Beausang et al. Scar color was subjectively classified as group 1 (perfect match), 2 (slight mismatch), 3 (obvious mismatch), or 4 (gross mismatch). Three general physicians quantified color differences between the scar and the surrounding normal skin using the L*a*b* color coordinates. The total color difference (ΔT*) and the color differences for each coordinate (ΔL*, Δa*, and Δb*) were calculated. The measurement was performed 3 times with a 4-week interval.Group 1 contained 51 scars, group 2 had 68, group 3 had 46, and group 4 had 42. The mean (SD) total color difference values (ΔT*) for each group were 4.4 (1.83), 9.55 (2.18), 17.76 (2.96), and 29.06 (9.45), respectively (P < 0.001). The mean of each color coordinate (ΔL* = light to dark, and Δa* = green to red) also differed between the groups, except in groups 1 and 2. The mean Δb* (blue to yellow) did not differ between the groups. The correlation coefficients for interrater reliability and test-retest consistency were satisfactory.Objective scar evaluation using the L*a*b* color coordinates is found to be a reliable method to quantify scar color. With further study, this method could be simple and effective to assess the effects of scar management. © 2010 by Mutaz B. Habal, MD.
DOI
10.1097/SCS.0b013e3181d7a7eb
Appears in Collections:
의과대학 > 의학과 > Journal papers
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