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Proceedings Paper

Towards diffuse optical tomography of arbitrarily heterogeneous turbid medium using GPU-accelerated Monte-Carlo forward calculation
Author(s): Xi Yi; Weiting Chen; Linhui Wu; Wei Zhang; Jiao Li; Xin Wang; Limin Zhang; Huijuan Zhao; Feng Gao
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Paper Abstract

At present, the most widely accepted forward model in diffuse optical tomography (DOT) is the diffusion equation, which is derived from the radiative transfer equation by employing the P1 approximation. However, due to its validity restricted to highly scattering regions, this model has several limitations for the whole-body imaging of small-animals, where some cavity and low scattering areas exist. To overcome the difficulty, we presented a Graphic-Processing- Unit(GPU) implementation of Monte-Carlo (MC) modeling for photon migration in arbitrarily heterogeneous turbid medium, and, based on this GPU-accelerated MC forward calculation, developed a fast, universal DOT image reconstruction algorithm. We experimentally validated the proposed method using a continuous-wave DOT system in the photon-counting mode and a cylindrical phantom with a cavity inclusion.

Paper Details

Date Published: 13 March 2013
PDF: 10 pages
Proc. SPIE 8574, Multimodal Biomedical Imaging VIII, 85740O (13 March 2013); doi: 10.1117/12.2001970
Show Author Affiliations
Xi Yi, Tianjin Univ. (China)
Weiting Chen, Tianjin Univ. (China)
Linhui Wu, Tianjin Univ. (China)
Wei Zhang, Tianjin Univ. (China)
Jiao Li, Tianjin Univ. (China)
Xin Wang, Tianjin Univ. (China)
Limin Zhang, Tianjin Univ. (China)
Huijuan Zhao, Tianjin Univ. (China)
Feng Gao, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 8574:
Multimodal Biomedical Imaging VIII
Fred S. Azar; Xavier Intes, Editor(s)

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