Radiance Monte-Carlo for application of the radiative transport equation in the inverse problem of diffuse optical tomography

Samuel Powell; Roman Hochuli; Simon R. Arridge

doi:10.1117/12.2250005

3 March 2017 Radiance Monte-Carlo for application of the radiative transport equation in the inverse problem of diffuse optical tomography

Samuel Powell, Roman Hochuli, Simon R. Arridge

Author Affiliations +

Proceedings Volume 10059, Optical Tomography and Spectroscopy of Tissue XII; 100590W (2017) https://doi.org/10.1117/12.2250005
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

We introduce a new Monte-Carlo technique to estimate the radiance distribution in a medium according to the radiative transport equation (RTE). We demonstrate how to form gradients of the forward model, and thus how to employ this technique as part of the inverse problem in Diffuse Optical Tomography (DOT). Use of the RTE over the more typical application of the diffusion approximation permits accurate modelling in the case of short source-detector separation and regions of low scattering, in addition to providing time-domain information without extra computational effort over continuous-wave solutions.

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Samuel Powell, Roman Hochuli, and Simon R. Arridge "Radiance Monte-Carlo for application of the radiative transport equation in the inverse problem of diffuse optical tomography", Proc. SPIE 10059, Optical Tomography and Spectroscopy of Tissue XII, 100590W (3 March 2017); https://doi.org/10.1117/12.2250005

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