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Quantitative characterization of turbidity by radiative transfer based reflectance imaging.
Biomed Opt Express ; 9(5): 2081-2094, 2018 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-29760971
ABSTRACT
A new and noncontact approach of multispectral reflectance imaging has been developed to inversely determine the absorption coefficient of µ a , the scattering coefficient of µs and the anisotropy factor g of a turbid target from one measured reflectance image. The incident beam was profiled with a diffuse reflectance standard for deriving both measured and calculated reflectance images. A GPU implemented Monte Carlo code was developed to determine the parameters with a conjugate gradient descent algorithm and the existence of unique solutions was shown. We noninvasively determined embedded region thickness in heterogeneous targets and estimated in vivo optical parameters of nevi from 4 patients between 500 and 950nm for melanoma diagnosis to demonstrate the potentials of quantitative reflectance imaging.

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: Biomed Opt Express Ano de publicação: 2018 Tipo de documento: Artigo País de afiliação: China