How Accurate Scatter Can Be Estimated in Nuclear Medicine Images?:A Monte Carlo Study

摘要：

　　The quality of single-photon emission computed tomography (SPECT) imaging is hampered by scatter,attenuation and collimator blurring,and Especially,efficient scatter correction has proved to be difficult to achieve.Objective: The objective of this article was to assess the accuracy of three wellknown methods of scatter correction in comparison to montecarlo studies.methods: Different homogenous phantoms with non-uniform activity distributions and attenuation maps were simulated by SimSET then DEW,TEW and Klein-Nishina Scatter correctoin methods applied on different projections of SPECT for scatter estimation.the result of scatter estimation by these three methods compare to scatter projections simulated.Results: Klein-Nishina scatter estimation & TEW has the least differences to simulated scatter.

关键词： scatter correction nuclear medicine images DEW TEW Klein-Nishina

作者: Sh.Oloomi M.hajizadeh F.Hashemiyan nezhad H.Rajabi

作者单位: medical physics department, Mashhad University of medical Sciences, Mashad, IRAN Azad University of Mashad, Mashad, IRAN medical physics department, Tarbiat Modarres university, Tehran, IRAN

会议类型: 国际会议

会议名称: World Congress on Medical Physics and Biomedical Engineering (2012年医学物理及生物医学工程国际会议(IFMBE))

会议地点: 北京

会议语种:英文

页码: 951-953

在线出版日期: 2012-05-26（万方平台首次上网日期，不代表论文的发表时间）