Abstract

DI LORENZO V., Ariana C. et al. Multiespectral and digital analysis of acquired melanocytic nevi. Rev. acad. colomb. cienc. exact. fis. nat. [online]. 2018, vol.42, n.163, pp.173-181. ISSN 0370-3908.  https://doi.org/10.18257/raccefyn.609.

The main objective of the present work was to find differences between different types of acquired melanocytic nevi on 146 lesions. Fractal dimension and entropy were obtained from multispectral images. We found significant differences in fractal dimension measures using an analysis of variance (one-way ANOVA) (p<0.05), with p=7.87e-08 at the blue wavelength. The entropy mean of all NMA pairs was compared using a T-Student test; we registered a high significance in the cyan channels (pUD=0.002, pCD=0.023, pID=0.012) and in the red ones (pUD=0.0001, pCD=2,55E-5, pID=0.005). Multispectral images together with order measures (fractal dimension and entropy) is a tool to characterize and distinguish NMA groups and a way towards developing a non-invasive dermatologic test based on melanin distribution in NMAs.

Keywords : Fractal dimension; Multiespectral; Entropy; Nevi; Dermastocopy.

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