Light propagation through weakly scattering media: a study of Monte Carlo vs. diffusion theory with application to neuroimaging

Daniele Ancora; Athanasios Zacharopoulos; Jorge Ripoll; Giannis Zacharakis

doi:10.1117/12.2183899

16 July 2015 Light propagation through weakly scattering media: a study of Monte Carlo vs. diffusion theory with application to neuroimaging

Daniele Ancora, Athanasios Zacharopoulos, Jorge Ripoll, Giannis Zacharakis

Author Affiliations +

Proceedings Volume 9538, Diffuse Optical Imaging V; 95380G (2015) https://doi.org/10.1117/12.2183899
Event: European Conferences on Biomedical Optics, 2015, Munich, Germany

Abstract

One of the major challenges within Optical Imaging, photon propagation through clear layers embedded between scattering tissues, can be now efficiently modelled in real-time thanks to the Monte Carlo approach based on GPU. Because of its nature, the photon propagation problem can be very easily parallelized and ran on low cost hardware, avoiding the need for expensive Super Computers. A comparison between Diffusion and MC photon propagation theory is presented in this work with application to neuroimaging, investigating low scattering regions in a mouse-like phantom. Regions such as the Cerebral Spinal Fluid, are currently not taken into account in the classical computational models because of the impossibility to accurately simulate light propagation using fast Diffusive Equation approaches, leading to inaccuracies during the reconstruction process. The goal of the study presented here, is to reduce and further improve the computation accuracy of the reconstructed solution in a highly realistic scenario in the case of neuroimaging in preclinical mouse models.

Citation Download Citation

Daniele Ancora, Athanasios Zacharopoulos, Jorge Ripoll, and Giannis Zacharakis "Light propagation through weakly scattering media: a study of Monte Carlo vs. diffusion theory with application to neuroimaging", Proc. SPIE 9538, Diffuse Optical Imaging V, 95380G (16 July 2015); https://doi.org/10.1117/12.2183899

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