Abstract
We implemented a delta-Eddington scheme in conjunction with a finite-difference, discrete-ordinate, radiative- transport code to accurately and efficiently simulate light propagation in highly-forward-scattering media. It is demonstrated that light propagation does only weakly depend on the anisotropy factor, g, as long as the reduced scattering coefficient, |US', is much larger than the absorption coefficient, jna. When |ia ~ ps', the fluence rate decays faster in media with high g-values compared to isotropically scattering (g = 0) media. In heterogeneous media that contain void-like spaces, such as the cerebrospinal-fluid-filled ventricles in the brain, the choice of g barely affects the predicted light propagation. However, the diffusion approximation does not yield an accurate description of the light transport in these cases.
© 1998 Optical Society of America
PDF ArticleMore Like This
Andreas H. Hielscher and Raymond E. Alcouffe
QThD2 European Quantum Electronics Conference (EQEC) 1996
Ossi Lehtikangas and Tanja Tarvainen
879908 European Conference on Biomedical Optics (ECBO) 2013
Shuichi TAKAHASHI and Yukio YAMADA
AMA1 Advances in Optical Imaging and Photon Migration (BIOMED) 1998