Laser-induced fluorescence and reflectance spectroscopy for the discrimination of basal cell carcinoma from the surrounding normal skin tissue.
The object of this study was to investigate whether laser-induced skin autofluorescence (LIF) and/or light reflectance spectra could provide a useful contrast between basal cell carcinoma (BCC) tissues and the surrounding healthy skin. Unstained human skin samples, excised from humans undergoing biopsy examination, were irradiated with a nitrogen laser (lambda = 337 nm) for excitation of autofluorescence and a tungsten halogen lamp for the reflectance measurements. The ex vivo spectroscopic results were correlated with the histopathology images to distinguish the areas of BCC from those of the surrounding health skin. A simple spectral analysis technique was also applied for better skin diagnosis. In conclusion, it seems that LIF and reflectance spectra could be used to differentiate neoplastic from normal skin tissue using an appropriate classification model analysis.
Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens, Zografou Campus, Athens, Greece. edrakaki@central.ntua.gr
E
E
Drakaki
E
E
Kaselouris
M
M
Makropoulou
A A
AA
Serafetinides
A
A
Tsenga
A J
AJ
Stratigos
A D
AD
Katsambas
C
C
Antoniou
D001706:Biopsy; D002280:Basal Cell Carcinoma / Q000175:diagnosis* / Q000473:pathology*; D006801:Humans; D007834:Lasers; D008027:Light; D012867:Skin / Q000473:pathology*; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology*; D013050:Spectrometry, Fluorescence; D013057:Spectrum Analysis