Document Detail

Objective and quantitative evaluation of scar color using the L*a*b* color coordinates.
MedLine Citation:
PMID:  20485028     Owner:  NLM     Status:  MEDLINE    
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 (DeltaT*) and the color differences for each coordinate (DeltaL*, Deltaa*, and Deltab*) 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 (DeltaT*) 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 (DeltaL* = light to dark, and Deltaa* = green to red) also differed between the groups, except in groups 1 and 2. The mean Deltab* (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.
Young Woo Cheon; Won Jai Lee; Dong Kyun Rah
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of craniofacial surgery     Volume:  21     ISSN:  1536-3732     ISO Abbreviation:  J Craniofac Surg     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-05-20     Completed Date:  2010-09-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010410     Medline TA:  J Craniofac Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  679-84     Citation Subset:  D    
Department of Plastic and Reconstructive Surgery, School of Medicine, Ewha Womans University, Seoul, Republic of Korea.
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MeSH Terms
Analysis of Variance
Cicatrix / pathology*
Color / standards*
Image Processing, Computer-Assisted*
Middle Aged
Reproducibility of Results

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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