Depth-resolved attenuation coefficient estimation for skin cancer assessment with Optical Coherence Tomography

Abstract: Optical Coherence Tomography (OCT) is nowadays being widely employed as a diagnostic tool for skin cancer. It can produce feedback on tissue morphology alterations produced by different pathologies. OCT images are mainly produced by differences in refractive index and attenuation coefficient, providing in-depth information. Intensity OCT images display the effect of tissue alterations on backscattered light, but it does not represent real physical magnitude. In a number of occasions, morphology alteration events within the same tissue type, produce intensity variations in OCT images that can be misclassified as different tissue component. The estimation of depth-resolved attenuation coefficient improves tissue contrast, helping to identify tissue identity and isolating the effect of disordered structures of the same tissue. The proposed methodology shows that melanoma and Basal Cell Carcinoma (BCC) pathologies exhibit different optical parameters in depth. This enhances the identification of subsurface skin features.

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 Autoría: Real E., Pérez Paredes G., López Higuera J., Conde O.,

 Congreso: Optical Coherence Imaging Techniques and Imaging in Scattering Media (3º : 2019 : Munich)

Editorial: SPIE Society of Photo-Optical Instrumentation Engineers

 Fecha de publicación: 19/07/2019

Nº de páginas: 3

Tipo de publicación: Comunicación a Congreso

DOI: 10.1117/12.2527255

ISSN: 0277-786X,1996-756X

Proyecto español: TEC2016-76021-C2-2-R ; FIS2010-19860

Url de la publicación: https://doi.org/10.1117/12.2527255