title: Quantitative evaluation of scattering in optical coherence tomography skin images using the extended Huygens-Fresnel theorem.
abstract: An optical properties extraction algorithm is developed based on enhanced Huygens-Fresnel light propagation theorem, to extract the scattering coefficient of a specific region in an optical coherence tomography (OCT) image. The aim is to quantitatively analyze the OCT images. The algorithm is evaluated using a set of phantoms with different concentrations of scatterers, designed based on Mie theory. The algorithm is then used to analyze basal cell carcinoma and healthy eyelid tissues, demonstrating distinguishable differences in the scattering coefficient between these tissues. In this study, we have taken advantage of the simplification introduced by the utilization of a dynamic focus OCT system. This eliminates the need to deconvolve the reflectivity profile with the confocal gate profile, as the sensitivity of the OCT system is constant throughout the axial range.
authors.affiliation: Research and Development Centre, Kent Institute of Medicine and Health Sciences, University of Kent, Canterbury, UK. mrn.avanaki@seas.wustl.edu
authors.forename: Mohammad R N
authors.initials: MR
authors.lastname: Avanaki
authors.forename: Adrian Gh
authors.initials: AG
authors.lastname: Podoleanu
authors.forename: John B
authors.initials: JB
authors.lastname: Schofield
authors.forename: Carole
authors.initials: C
authors.lastname: Jones
authors.forename: Manu
authors.initials: M
authors.lastname: Sira
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Ali
authors.initials: A
authors.lastname: Hojjat
mesh_terms: D000465:Algorithms; D046169:Dermoscopy / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008027:Light; D009391:Nephelometry and Turbidimetry / Q000379:methods*; D019047:Phantoms, Imaging; D012542:Scattering, Radiation; D012867:Skin / Q000166:cytology*; D041623:Tomography, Optical Coherence / Q000295:instrumentation / Q000379:methods*