Wang, Lihong V. and Jacques, Steven L. (2000) Source of error in calculation of optical diffuse reflectance from turbid media using diffusion theory. Computer Methods and Programs in Biomedicine, 61 (3). pp. 163-170. ISSN 0169-2607. doi:10.1016/S0169-2607(99)00041-3. https://resolver.caltech.edu/CaltechAUTHORS:20160720-130003261
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Abstract
Diffusion theory and similarity relations were used to calculate the optical diffuse reflectance of an infinitely narrow laser beam incident upon a semi-infinite turbid medium. The results were analyzed by comparison with the accurate results from Monte Carlo simulations. Because a large number of photon packets were traced, the variance of the results from Monte Carlo simulations was small enough to reveal the detailed defects of the diffusion theory and the similarity relations, which are broadly used in photomedicine. We demonstrated that both diffusion theory and similarity relations provide very accurate results when the photon sources are isotropic and buried more deeply than one transport mean free path in turbid media. We found that the key factor affecting the accuracy of the diffusion theory application was the conversion from the infinitely narrow laser beam to an isotropic point source in turbid media.
| Item Type: | Article | |||||||||
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| Additional Information: | © 2000 Elsevier Science Ireland Ltd. Received 26 March 1999, Revised 15 June 1999, Accepted 23 June 1999, Available online 21 January 2000. | |||||||||
| Subject Keywords: | Turbid media; Diffuse reflectance; Monte Carlo; Diffusion theory; Similarity relations | |||||||||
| Issue or Number: | 3 | |||||||||
| DOI: | 10.1016/S0169-2607(99)00041-3 | |||||||||
| Record Number: | CaltechAUTHORS:20160720-130003261 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20160720-130003261 | |||||||||
| Official Citation: | Lihong V Wang, Steven L Jacques, Source of error in calculation of optical diffuse reflectance from turbid media using diffusion theory, Computer Methods and Programs in Biomedicine, Volume 61, Issue 3, March 2000, Pages 163-170, ISSN 0169-2607, http://dx.doi.org/10.1016/S0169-2607(99)00041-3. (http://www.sciencedirect.com/science/article/pii/S0169260799000413) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 69135 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 26 Jul 2016 20:15 | |||||||||
| Last Modified: | 11 Nov 2021 04:09 |
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