近红外漫射光层析成像实验研究  

Experimental Study on Near Infrared Diffuse Optical Tomography

作　　者：赵会娟[1] 姜颖婷[2] 缪辉[2] 高峰[2] YUKARI Tanikawa YUKIO Yamada 

机构地区：[1]天津大学精密测试技术及仪器国家重点实验室,天津300072 [2]天津大学精密仪器与光电子工程学院生物医学工程系,天津300072 [3]National Institute of Advanced Industrial Science and Technology (AIST),1-2 Namiki,Tsukuba, Ibaraki 305-8564,Japan [4]National Institute of Advanced Industrial Science and Technology (AIST),1-2 Namiki,Tsukuba, Ibaraki 305-8564,Japan University of Electro-Communications,1-5-1 Chofugaoka,Chofu,Tokyo 182-8585,Japan

出　　处：《光子学报》2007年第6期1142-1146,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(60678049和60578008);973计划(2006CB705700)资助

摘　　要：实验验证了所建立的时间分辨光学层析成像测量系统的光学参量预测能力、多个测量通道的一致性,表明了本测量系统具有层析成像的潜力.研究了采用特征数据量(平均飞行时间、广义脉冲谱技术为基础的用数据类型R)及全时间分辨数据的图像重建算法在光学参量重建准确度、重建出的对象尺寸、空间分辨率等方面的各自优势.The established diffuse optical tomographic imaging system and the developed image reconstruction algorithm using different data-types and full time resolved data were experimentally evaluated. Results show that the measurement system has reasonable SNR and consistency among measurement channels. The data type R based on the generalized pulse spectral technology was able to reconstruct images in better qualities than the mean flight time. The algorithm using full time resolved data has the potential in reconstructing images in high spatial resolution but is apt to be interfered from experiment noise.

关 键 词：医学成像 近红外光 时间分辨 光学层析成像 

分 类 号：TN212.7[电子电信—物理电子学]