Diffuse photon propagation in multilayered geometries.

Jan Sikora; Athanasios Zacharopoulos; Abdel Douiri; Martin Schweiger; Lior Horesh; Simon R Arridge; Jorge Ripoll

doi:10.1088/0031-9155/51/3/003

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Diffuse photon propagation in multilayered geometries.

Jan Sikora·Athanasios Zacharopoulos·Abdel Douiri·Martin Schweiger·Lior Horesh·Simon R Arridge·Jorge Ripoll

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Abstract

Diffuse optical tomography (DOT) is an emerging functional medical imaging modality which aims to recover the optical properties of biological tissue. The forward problem of the light propagation of DOT can be modelled in the frequency domain as a diffusion equation with Robin boundary conditions. In the case of multilayered geometries with piecewise constant parameters, the forward problem is equivalent to a set of coupled Helmholtz equations. In this paper, we present solutions for the multilayered diffuse light propagation for a three-layer concentric sphere model using a series expansion method and for a general layered geometry using the boundary element method (BEM). Results are presented comparing these solutions to an independent Monte Carlo model, and for an example three layered head model.

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Algorithms Computer Simulation Diffusion Head Humans Light Models, Statistical Models, Theoretical Monte Carlo Method Normal Distribution Phantoms, Imaging Photons Scattering, Radiation Tomography, Optical Journal Article Research Support, Non-U.S. Gov't

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BibTeX RIS

Jan Sikora, Athanasios Zacharopoulos, Abdel Douiri, Martin Schweiger, Lior Horesh, Simon R Arridge, Jorge Ripoll. 2006-01-11. Diffuse photon propagation in multilayered geometries.. https://doi.org/10.1088/0031-9155%2F51%2F3%2F003

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