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Automated diagnosis of pigmented skin lesions.

Abstract：

:Since advanced melanoma remains practically incurable, early detection is an important step toward a reduction in mortality. High expectations are entertained for a technique known as dermoscopy or epiluminescence light microscopy; however, evaluation of pigmented skin lesions by this method is often extremely complex and subjective. To obviate the problem of qualitative interpretation, methods based on mathematical analysis of pigmented skin lesions, such as digital dermoscopy analysis, have been developed. In the present study, we used a digital dermoscopy analyzer (DBDermo-Mips system) to evaluate a series of 588 excised, clinically atypical, flat pigmented skin lesions (371 benign, 217 malignant). The analyzer evaluated 48 parameters grouped into 4 categories (geometries, colors, textures and islands of color), which were used to train an artificial neural network. To evaluate the diagnostic performance of the neural network and to check it during the training process, we used the error area over the receiver operating characteristic curve. The discriminating power of the digital dermoscopy analyzer plus artificial neural network was compared with histologic diagnosis. A feature selection procedure indicated that as few as 13 of the variables were sufficient to discriminate the 2 groups of lesions, and this also ensured high generalization power. The artificial neural network designed with these variables enabled a diagnostic accuracy of about 94%. In conclusion, the good diagnostic performance and high speed in reading and analyzing lesions (real time) of our method constitute an important step in the direction of automated diagnosis of pigmented skin lesions.

journal_name

Int J Cancer

journal_title

International journal of cancer

authors

Rubegni P,Cevenini G,Burroni M,Perotti R,Dell'Eva G,Sbano P,Miracco C,Luzi P,Tosi P,Barbini P,Andreassi L

doi

10.1002/ijc.10620

keywords:

subject

Has Abstract

pub_date

2002-10-20 00:00:00

pages

576-80

issue

6

eissn

0020-7136

issn

1097-0215

journal_volume

101

pub_type

杂志文章

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