Monte Carlo modeling of light propagation in highly scattering tissue--I: Model predictions and comparison with diffusion theory

IEEE Trans Biomed Eng. 1989 Dec;36(12):1162-8. doi: 10.1109/tbme.1989.1173624.


Using optical interaction coefficients typical of mammalian soft tissues in the red and near infrared regions of the spectrum, calculations of fluence-depth distributions, effective penetration depths and diffuse reflectance from two models of radiative transfer, diffusion theory, and Monte Carlo simulation are compared for a semi-infinite medium. The predictions from diffusion theory are shown to be increasingly inaccurate as the albedo tends to zero and/or the average cosine of scatter tends to unity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Light
  • Models, Biological*
  • Monte Carlo Method*
  • Operations Research*
  • Scattering, Radiation*
  • Skin*