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Analysis of lesional color to differentiate infantile hemangiomas from port‐wine birthmarks in infants less than 3 months old: A pilot study
Author(s) -
O’Brien Kathleen F.,
Frieden Ilona J.,
Zeymo Alexander,
Vasic Jelena,
Silverman Robert,
Goldberg Gerald,
Carver DeKlotz Cynthia Marie
Publication year - 2021
Publication title -
pediatric dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.542
H-Index - 73
eISSN - 1525-1470
pISSN - 0736-8046
DOI - 10.1111/pde.14554
Subject(s) - medicine , birthmark , hue , port wine , rgb color model , colorimetry , dermatology , artificial intelligence , surgery , computer vision , computer science
Background In their early phase, infantile hemangiomas (IH) can sometimes be difficult to differentiate from port‐wine birthmarks (PWB). Until recently, inexpensive diagnostic tools have not been readily available. Objective To determine the diagnostic utility of widely available colorimetric technology when differentiating PWB from IH in photographs of infants less than 3 months old. Methods Multi‐center, retrospective analysis of RGB (red, green, and blue) and HSL (hue, saturation, lightness) values collected using electronic colorimeters from images of clinically confirmed untreated IH or PWB. Subgroup analysis of flat vascular birthmarks was subsequently performed. Results Images of 119 IH (specifically, 45 flat IH) and 59 PWB were identified. PWB had significantly ( P < .001) higher RGB values of all primary colors, most notably for blue and green (mean difference: >50), irrespective of thickness. RGB or RGB with HSL values had an excellent accuracy (90%), sensitivity (92%), specificity (98%), and positive predictive value (98%) when discriminating PWB from flat IH. IH could be distinctly clustered from PWB when combining their RGB with HSL values. Conclusion Electronic colorimeters with emphasis on blue and green values, are able to differentiate PWB from IH, irrespective of thickness, with a high degree of accuracy. A larger scale evaluation is now required.