首页 | 本学科首页   官方微博 | 高级检索  
     

基于旋转多元阵列探测器的快速光声成像系统
引用本文:谭毅,何军锋,任亚杰,姚军财.基于旋转多元阵列探测器的快速光声成像系统[J].激光技术,2009,33(3):300-302.
作者姓名:谭毅  何军锋  任亚杰  姚军财
作者单位:1.陕西理工学院, 物理系, 汉中, 723003
基金项目:陕西理工学院院上资助项目,陕西省教育厅资助项目 
摘    要:为了快速得到高质量的光声重建图像,采用旋转多元线性阵列探测器,可改善投影不均匀的影响,重建复杂吸收体的光声像。由旋转不同角度数的光声像的仿真和实验表明,利用多元线性阵列探测器旋转扫描的光声像,能够更好地反映生物组织的光学吸收分布。该系统有望为组织的在体功能成像提供一种更方便快捷的装置和方法。

关 键 词:医用光学与生物技术    光声成像    多元线性阵列探测器    旋转扫描系统    相控聚焦
收稿时间:2008-03-19
修稿时间:2008-06-20

Fast photoacoustic imaging based on rotating multi-element linear transducer array
TAN Yi,HE Jun-feng,REN Ya-jie,YAO Jun-cai.Fast photoacoustic imaging based on rotating multi-element linear transducer array[J].Laser Technology,2009,33(3):300-302.
Authors:TAN Yi  HE Jun-feng  REN Ya-jie  YAO Jun-cai
Abstract:Fast photoacoustic imaging system, based on rotating multi-element linear transducer array,can improve the effect of asymmetric projection and reconstruct the photoacoustic image of complex absorber. Compared with the image reconstructed by single rotating scanning transducer, the system can reduce the time for collecting photoacoustic signals and reconstructing the image concerned. With the modified back-projection algorithm and by increasing the numbers of transducers in unit length, the system can further reduce the fake and improve the contrast of images. The simulations and experiments demonstrated that this kind of system of multi-element linear transducer array can reconstruct images agreed well with the optical absorption distribution of original phantom samples. It will provides a novel and effective photoacoustic imaging approach for clinic diagnosis of neoplasm and tissue functional imaging in vivo, and has potential to be developed into a practical apparatus.
Keywords:Medical optics and biotechnology  Photoacoustic imaging  Multi-element linear transducer array  Rotating scanning system  Phase-controlled focus
本文献已被 万方数据 等数据库收录!
点击此处可从《激光技术》浏览原始摘要信息
点击此处可从《激光技术》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号