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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 5 — May. 17, 2007

Monte Carlo and discrete-ordinate simulations of spectral radiances in a coupled air–tissue system

Kjersti Hestenes, Kristian P. Nielsen, Lu Zhao, Jakob J. Stamnes, and Knut Stamnes  »View Author Affiliations

Applied Optics, Vol. 46, Issue 12, pp. 2333-2350 (2007)

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We perform a detailed comparison study of Monte Carlo (MC) simulations and discrete-ordinate radiative-transfer (DISORT) calculations of spectral radiances in a 1D coupled air–tissue (CAT) system consisting of horizontal plane-parallel layers. The MC and DISORT models have the same physical basis, including coupling between the air and the tissue, and we use the same air and tissue input parameters for both codes. We find excellent agreement between radiances obtained with the two codes, both above and in the tissue. Our tests cover typical optical properties of skin tissue at the 280, 540, and 650   nm wavelengths. The normalized volume scattering function for internal structures in the skin is represented by the one-parameter Henyey–Greenstein function for large particles and the Rayleigh scattering function for small particles. The CAT-DISORT code is found to be approximately 1000 times faster than the CAT-MC code. We also show that the spectral radiance field is strongly dependent on the inherent optical properties of the skin tissue.

© 2007 Optical Society of America

OCIS Codes
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.5280) Medical optics and biotechnology : Photon migration
(290.4210) Scattering : Multiple scattering

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: August 14, 2006
Revised Manuscript: November 21, 2006
Manuscript Accepted: December 22, 2006
Published: April 3, 2007

Virtual Issues
Vol. 2, Iss. 5 Virtual Journal for Biomedical Optics

Kjersti Hestenes, Kristian P. Nielsen, Lu Zhao, Jakob J. Stamnes, and Knut Stamnes, "Monte Carlo and discrete-ordinate simulations of spectral radiances in a coupled air-tissue system," Appl. Opt. 46, 2333-2350 (2007)

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