Fast Monte Carlo inversion for extracting the optical properties of tubular tissues  

作　　者：赵会娟 周晓青 梁菊兰 张顺起 

机构地区：[1]College of Precision Instruments and Optoelectronics Engineering Tianjin University

出　　处：《Chinese Optics Letters》2008年第12期935-937,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.60578008 and 60678089);the National Basic Research Program of China(No.2006CB705700)

摘　　要：Reconstruction of absorption coefficient μa and scattering coefficient μs is very important for applications of diffuse optical tomography and near infrared spectroscopy. Aiming at the early cancer detection of cervix and stomach, we present a fast inverse Monte-Carlo scheme for extracting μa and μs of a tubular tissue from the measurement on frequency domain. Results show that the computation time for reconstructing one set of μa and μs is less than 1 min and the relative errors in reconstruction are less than ±10% for the optical properties of normal cervical tissue and precancerous lesions.Reconstruction of absorption coefficient μa and scattering coefficient μs is very important for applications of diffuse optical tomography and near infrared spectroscopy. Aiming at the early cancer detection of cervix and stomach, we present a fast inverse Monte-Carlo scheme for extracting μa and μs of a tubular tissue from the measurement on frequency domain. Results show that the computation time for reconstructing one set of μa and μs is less than 1 min and the relative errors in reconstruction are less than ±10% for the optical properties of normal cervical tissue and precancerous lesions.

关 键 词：Diagnostic radiography Infrared spectroscopy Medical imaging Monte Carlo methods Optical properties Optical tomography Restoration Spectroscopic analysis Tomography 

分 类 号：O436[机械工程—光学工程]