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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Determination of the optical properties of a two-layer tissue model by detecting photons migrating at progressively increasing depths
Applied Optics, Volume 42, No. 31, Year 2003
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Description
We have investigated a method for solving the inverse problem of determining the optical properties of a two-layer turbid model. The method is based on deducing the optical properties (OPs) of the top layer from the absolute spatially resolved reflectance that results from photon migration within only the top layer by use of a multivariate calibration model. Then the OPs of the bottom layer are deduced from relative frequency-domain (FD) reflectance measurements by use of the two-layer FD diffusion model. The method was validated with Monte Carlo FD reflectance profiles and experimental measurements of two-layer phantoms. The results showed that the method is useful for two-layer models with interface depths of μ5 mm; the OPs were estimated, within a relatively short time (<1 min), with a mean error of<10% for the Monte Carlo reflectance profiles and with errors of<25% for the phantom measurements. © 2003 Optical Society of America.
Authors & Co-Authors
Fawzi, Yasser S.
Egypt, Giza
Cairo University
Egypt, Giza
National Institute of Laser Enhanced Sciences
Youssef, Abou Bakr Mohamed
Egypt, Giza
Cairo University
Egypt, Shebin el Kom
Faculty of Engineering
El-Batanony, Mohamed H.
Egypt, Giza
Cairo University
Egypt, Menofia
Menoufia Faculty of Medicine
Kadah, Yasser M.
Egypt, Giza
Cairo University
Egypt, Shebin el Kom
Faculty of Engineering
Statistics
Citations: 31
Authors: 4
Affiliations: 4
Identifiers
Doi:
10.1364/AO.42.006398
ISSN:
1559128X
e-ISSN:
21553165