Monte Carlo Simulation Study on Impact of AFOV and Crystal on Scatter Fraction and Sensitivity of PET

被引：0
作者：
Yuan B. [1 ]
Qu G. [2 ]
Ou H. [3 ]
Zhao S. [1 ]
机构：
[1] School of Physics and Microelectronics, Zhengzhou University, Zhengzhou
[2] Top Grade Healthcare, Beijing
[3] School of Science, Henan University of Technology, Zhengzhou
来源：
Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2020年 / 54卷 / 12期
关键词：
Monte Carlo simulation; NEMA standard; PET;
D O I：
10.7538/yzk.2020.youxian.0047
中图分类号：
学科分类号：
摘要：
Long axial field of view (AFOV) PET is the development direction of future PET. The purpose of this paper is to simulate PET using GATE toolkit to evaluate scatter fraction (SF) and sensitivity for different AFOV and different crystal materials according to NEMA NU2-2012 protocol. The simulation results were compared with the experimental results. The simulation results are in accordance with experimental results, and the reliability of the simulation is verified. As the AFOV increases, the sensitivity also increases, but this increase is non-linear and changes most significantly at a certain length, and the axial length of the most obvious sensitivity change is different for different PET. The crystal with the best sensitivity is LuAP, and the YAP crystal has the lowest sensitivity. The crystal material and AFOV have no significant impact on the scatter fraction. © 2020, Editorial Board of Atomic Energy Science and Technology. All right reserved.
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页码：2448 / 2453
页数：5
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