荧光分子断层成像系统的动态采样适用条件  

Adaptable Conditions of Dynamic Data-Acquisition Scheme in Non-contact Fluorescent Tomography System

作　　者：金燕[1] 许准[1] 李明泽[1] 白净[1] 

机构地区：[1]清华大学生物医学工程系,北京100084

出　　处：《北京生物医学工程》2009年第5期458-462,共5页Beijing Biomedical Engineering

基　　金：国家自然科学基金(30670577);清华-裕元基金;973(2006CB705700);国家863计划(2006AA020803);中国博士后科学基金资助项目

摘　　要：动态采样比静态采样具有更高的采样效率,所以研究动态采样替代静态采样的适用条件具有一定意义。通过设计两组与静态采样的对比实验,得到其动态采样的适用条件:拍摄步长要小于12°/帧,荧光深度要大于2mm。进行动态采样时至少满足上述的两个条件时动态采样才能较好地替代静态采样。Adaptable conditions of dynamic data-acquisition scheme in non-contact fluorescent tomography system are presented in this paper. It is useful to study these conditions because dynamic scheme has higher efficiency than static scheme. Two series experiments of static and dynamic schemes were performed to find out these conditions. The experimental results show that when the acquisition angle of per frame is less than 12° ,and the fluorescent is positioned deeper than 2mm from the surface of subject, the dynamic scheme can replace the static scheme.

关 键 词：荧光分子断层成像(FMT) 动态采样 静态采样 适用条件 

分 类 号：R318.04[医药卫生—生物医学工程]