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Monte Carlo Modeling of Light Transport in Tissues

Jacques, Steven L. and Wang, Lihong (1995) Monte Carlo Modeling of Light Transport in Tissues. In: Optical-Thermal Response of Laser-Irradiated Tissue. Lasers, Photonics, and Electro-Optics. Springer , Boston, pp. 73-100. ISBN 978-1-4757-6094-1. https://resolver.caltech.edu/CaltechAUTHORS:20170315-083020240

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Abstract

Monte Carlo simulations of photon propagation offer a flexible yet rigorous approach toward photon transport in turbid tissues. This method simulates the “random walk” of photons in a medium that contains absorption and scattering. The method is based on a set of rules that govern the movement of a photon in tissue. The two key decisions are (1) the mean free path for a scattering or absorption event, and (2) the scattering angle. Figure 4.1 illustrates a scattering event. At boundaries, a photon is reflected or moves across the boundary. The rules of photon propagation are expressed as probability distributions for the incremental steps of photon movement between sites of photon—tissue interaction, for the angles of deflection in a photon’s trajectory when a scattering event occurs, and for the probability of transmittance or reflectance at boundaries. Monte Carlo light propagation is rigorous yet very descriptive. However, this method is basically statistical in nature and requires a computer to calculate the propagation of a large number of photons. To illustrate how photons propagate inside tissues, a few photon paths are shown in Fig. 4.2.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/978-1-4757-6092-7_4DOIArticle
ORCID:
AuthorORCID
Wang, Lihong0000-0001-9783-4383
Additional Information:© 1995 Springer Science+Business Media. We wish to acknowledge the contributions of Scott A. Prahl, Marleen Keijzer, Iyad Saidi, and A. J. Welch, who have been our collaborators during the development of these Monte Carlo simulations. This work was supported by the NIH (R29-HL45045) and the Department of the Navy (N00015-91-J-1354).
Funders:
Funding AgencyGrant Number
NIHR29-HL45045
Office of Naval Research (ONR)N00015-91-J-1354
Series Name:Lasers, Photonics, and Electro-Optics
DOI:10.1007/978-1-4757-6092-7_4
Record Number:CaltechAUTHORS:20170315-083020240
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170315-083020240
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75130
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Mar 2017 18:31
Last Modified:15 Nov 2021 16:31

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