Share Email Print

Proceedings Paper

Determination of optical properties in turbid medium based on time-resolved determination
Author(s): Dongli Qin; Zheng Ma; Feng Gao; Huijuan Zhao
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

In this article, we briefly described a time-correlated single photon counting (TCSPC) system specifically designed for extracting the optical properties in turbid medium. This system was evaluated by use of two sets of liquid tissue-simulating phantoms containing different concentrations of Intralipid-10% as scatters and India ink as absorbers. With the distribution of times of flight (DTOF) of photons measured by the TCSPC system, some featured parameters, such as the mean time of flight and the variance of DTOF were calculated. Based on these parameters, we developed a simple and fast method to obtain the absorption coefficient μa and reduced scattering coefficient μs of the turbid medium. Furthermore, the accuracy of the method was validated using the Monte Carlo simulations. It was found that the optical properties could be extracted with this method, which was much faster than the conventional curve-fitting procedure. Our method could be useful in on-line monitoring of optical properties of biological tissue.

Paper Details

Date Published: 1 May 2007
PDF: 8 pages
Proc. SPIE 6534, Fifth International Conference on Photonics and Imaging in Biology and Medicine, 65340T (1 May 2007); doi: 10.1117/12.741361
Show Author Affiliations
Dongli Qin, Tianjin Univ. (China)
Zheng Ma, Tianjin Univ. (China)
Feng Gao, Tianjin Univ. (China)
Huijuan Zhao, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 6534:
Fifth International Conference on Photonics and Imaging in Biology and Medicine
Qingming Luo; Lihong V. Wang; Valery V. Tuchin; Min Gu, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?