Research Papers: Imaging

Usefulness of tissue autofluorescence imaging in actinic cheilitis diagnosis

[+] Author Affiliations
Ademar Takahama Junior, Isabel Schausltz Pereira Faustino, Danielle Resende Camisasca, Karla Bianca Fernandes da Costa Fontes, Rebeca Souza Azevedo

Fluminense Federal University, Oral Pathology, School of Dentistry, Nova Friburgo, Rio de Janeiro 28625-650, Brazil

Cristina Kurachi, Alessandro Cosci

University of São Paulo, Institute of Physics of São Carlos, São Carlos, São Paulo 13566-590, Brazil

Fábio Ramôa Pires

State University of Rio de Janeiro, Oral Pathology, School of Dentistry, Rio de Janeiro 21550-030, Brazil

J. Biomed. Opt. 18(7), 076023 (Jul 25, 2013). doi:10.1117/1.JBO.18.7.076023
History: Received February 1, 2013; Revised June 2, 2013; Accepted June 27, 2013
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Abstract.  Actinic cheilitis (AC) is a potentially malignant disorder of the lips. Because of its heterogeneous clinical aspect, it is difficult to indicate representative biopsy area. The purpose of this study was to evaluate the usefulness of tissue autofluorescence in AC diagnosis. The system was composed of a 405-nm light-emitting diode, sent to the sample by a dichroic, that allows the fluorescence signal to reach a camera directly plugged in the system. Fifty-seven patients with clinical diagnosis of AC and 45 normal volunteers were selected. According to clinical and fluorescence features, one or more areas were selected for biopsies in the AC group and epithelial dysplasia (ED) grades were established. The autofluorescence images were processed by a clustering algorithm for AC automated diagnosis. The tissue autofluorescence image revealed a heterogeneous pattern of loss and increase of fluorescence in patients with AC. ED was found in 93% of the cases, and most of the areas graded as moderate or severe ED were chosen with the aid of autofluorescence. The processed autofluorescence images from AC patients showed a higher number of spots in an irregular pattern. Tissue autofluorescence image system is a useful technique in association with clinical examination for AC diagnosis.

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© 2013 Society of Photo-Optical Instrumentation Engineers

Citation

Ademar Takahama Junior ; Cristina Kurachi ; Alessandro Cosci ; Isabel Schausltz Pereira Faustino ; Danielle Resende Camisasca, et al.
"Usefulness of tissue autofluorescence imaging in actinic cheilitis diagnosis", J. Biomed. Opt. 18(7), 076023 (Jul 25, 2013). ; http://dx.doi.org/10.1117/1.JBO.18.7.076023


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