title: [Principle and implementation of list-mode image reconstruction in PET].
abstract: Positron emission tomography (PET) has become basic support equipment in clinical and many other scientific research fields and has been a hot research field at present. Tomography reconstruction algorithm is a key component of PET, and most PETs use statistical iterative reconstruction algorithms from sinograms data currently. However, tomography reconstruction from list-mode data possesses many unique advantages, and it has caused great attention and is in the process of rapid development and improvementin recently. We eventually achieved list-mode tomography reconstruction in this paper, using experimental data of small animal PET scanner Eplus-166, exploiting S-LMEM algorithm and orthogonal distance-based ray-tracer. The results demonstrated that image resolution and contrast recovery achieved inherent properties of the scanner and on-the-fly ray-tracing methods is feasible for dynamic reconstruction.
authors.affiliation: Physical Engineering College, Zhengzhou University, Zhengzhou 450001, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Zhang
authors.forename: Baoci
authors.initials: B
authors.lastname: Shan
authors.forename: Mingkai
authors.initials: M
authors.lastname: Yun
authors.forename: Shujun
authors.initials: S
authors.lastname: Zhao
mesh_terms: D000465:Algorithms; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008962:Models, Theoretical; D049268:Positron-Emission Tomography / Q000379:methods*