摘要
Biomedical photoacoustic tomography(PAT)provides anatomical,functional,metabolic,molecular,and genetic contrasts of vasculature,hemodynamics,oxygen metabolism,biomarkers,and gene expression.These attributes bring PAT to a wide variety of applications in clinical medicine and preclinical research.We report the development of a real-time PAT imaging system,which integrates signal scanning,image reconstruction and displaying photoacoustic images in real time.An optimized back projection algorithm for PAT imaging is proposed and tested on a latest graphics process unit based card.The whole system is built and tested in an experiment for monitoring moving blood events to validate the real-time performance of this system to image moving events.
作者
FENG Ting
YUAN Jie
YU Yao
ZHOU Yu
XU Guan
封婷;袁杰;于耀;周余;徐冠(School of Electronic Science and Engineering,Nanjing University,Nanjing 210093;Department of Radiology,University of Michigan,Ann Arbor,MI 48109,USA)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 61201425,61100111 and 61300157.
