Frequency-domain imaging through heavily scattering media: a comparison of diffusion and Monte Carlo simulations

Stephen P. Morgan; Mark C. Pitter; Michael G. Somekh; John G. Walker

doi:10.1117/12.301069

1 January 1998 Frequency-domain imaging through heavily scattering media: a comparison of diffusion and Monte Carlo simulations

Stephen P. Morgan, Mark C. Pitter, Michael G. Somekh, John G. Walker

Author Affiliations +

Proceedings Volume 3194, Photon Propagation in Tissues III; (1998) https://doi.org/10.1117/12.301069
Event: BiOS Europe '97, 1997, San Remo, Italy

Abstract

A semi-analytic diffusion model to describe frequency domain imaging through heavily scattering media has been validated by a quantitative comparison with Monte Carlo simulations and experimental results. Although the model is not an exact solution it can deal with situations where exact analysis fails. The method lends itself to modeling responses from restricted objects and deals with the fact that the object is embedded in a finite medium. The presence of inhomogeneities is accounted for by a two stage propagation of Green's functions from source to object to detector. Using a combined photon flux and photon density term at the object plane to represent the radiance provides the best match to Monte Carlo simulations.

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Stephen P. Morgan, Mark C. Pitter, Michael G. Somekh, and John G. Walker "Frequency-domain imaging through heavily scattering media: a comparison of diffusion and Monte Carlo simulations", Proc. SPIE 3194, Photon Propagation in Tissues III, (1 January 1998); https://doi.org/10.1117/12.301069

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