Searching for just a few words should be enough to get started. If you need to make more complex queries, use the tips below to guide you.
Article type: Research Article
Authors: Zhao, Huijuan; | Zhou, Xiaoqing | Fan, Ying | Gao, Feng;
Affiliations: College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China | Tianjin Key Laboratory of Biomedical Detecting Techniques and Instruments, Tianjin, China
Note: [] Corresponding author: Huijuan Zhao, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China. E-mail: huijuanzhao@tju.edu.cn. Tel.: +86 022 27404209; E-mail: huijuanzhao@tju.edu.cn
Abstract: A near infrared diffuse reflectance system for endoscopic measurement and an inverse algorithm for extracting optical properties of tubular tissues were developed in this paper. The measurement system worked in the frequency domain mode and a custom probe was employed for endoscopic detection of cervical cancer. Experiments for evaluating the measurement accuracy indicate that the model-to-data mismatch for the AC amplitude and phase lag is less than 3.7% and 6.7%, respectively. To facilitate the extraction of the optical properties in tubular tissues and to minimize the influence of the initial guess on the reconstruction accuracy, a fast inverse Monte Carlo simulation algorithm with cluster analysis method was proposed. Simulation results showed that the relative errors of the absorption coefficient recovered using the proposed inverse algorithm are less than 5.8% and those of the sacttering coefficient are less than 10.2%. Endoscopic measurement on two tubular solid phantoms were also carried out to evaluate the system and the inversion scheme. The results demonstrated that less than 20% relative error can be achieved.
Keywords: Near-infrared diffuse reflectance, frequency domain, inverse monte carlo simulation, endoscopic measurement
DOI: 10.3233/XST-2010-0278
Journal: Journal of X-Ray Science and Technology, vol. 19, no. 1, pp. 57-68, 2011
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
USA
Tel: +1 703 830 6300
Fax: +1 703 830 2300
sales@iospress.com
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
IOS Press
Nieuwe Hemweg 6B
1013 BG Amsterdam
The Netherlands
Tel: +31 20 688 3355
Fax: +31 20 687 0091
info@iospress.nl
For editorial issues, permissions, book requests, submissions and proceedings, contact the Amsterdam office info@iospress.nl
Inspirees International (China Office)
Ciyunsi Beili 207(CapitaLand), Bld 1, 7-901
100025, Beijing
China
Free service line: 400 661 8717
Fax: +86 10 8446 7947
china@iospress.cn
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
如果您在出版方面需要帮助或有任何建, 件至: editorial@iospress.nl