Comparison of finite-difference transport and diffusion calculations for photon migration in homogeneous and heterogeneous tissues.

@article{Hielscher1998ComparisonOF,
  title={Comparison of finite-difference transport and diffusion calculations for photon migration in homogeneous and heterogeneous tissues.},
  author={Andreas H. Hielscher and Raymond E. Alcouffe and Randall L. Barbour},
  journal={Physics in medicine and biology},
  year={1998},
  volume={43 5},
  pages={1285-302}
}
We analyse the limits of the diffusion approximation to the time-independent equation of radiative transfer for homogeneous and heterogeneous biological media. Analytical calculations and finite-difference simulations based on diffusion theory are compared with discrete-ordinate, finite-difference transport calculations. The influence of the ratio of absorption and transport scattering coefficient (mu(a)/mu'(s)) on the accuracy of the diffusion approximation are quantified and different… CONTINUE READING

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