基于IEC标准的日本滨松SHR22000全身用PET扫描仪性能测试  

Performance Evaluation of the HAMAMATSU SHR22000 Whole-Body PET Scanner Using the IEC Standard

作　　者：田毅[1] 片部笃志 刘华锋[1] 鲍超[1] 山下贵司 

机构地区：[1]浙江大学现代光学仪器国家重点实验室,杭州310027 [2]日本滨松光子学株式会社中央研究所

出　　处：《高能物理与核物理》2006年第11期1123-1127,共5页High Energy Physics and Nuclear Physics

基　　金：国家创新群体科学基金(60021201);浙江大学现代光学仪器国家重点实验室开放课题(LMOI-0403)资助~~

摘　　要：SHR22000是日本滨松光子学株式会社开发的人体全身用正电子发射断层扫描仪．扫描仪具有32层探测器环,二维采集可形成63个切片,病人孔径为60cm,单个体位数据采集时间为3-5min．扫描仪的轴向视野为22．5cm,经5个体位可以完成全身扫描,视野中轴10mm处平均横向分辨率可达到3．2mm．本文依照国际标准IEC 61675-1(亦即GB／T18988．1-2003)规定的各项指标对该扫描仪的空间分辨率、灵敏度、散射和计数率特性以及复原系数进行了测试,并给出结果数据．SHR22000 is a whole-body PET scanner developed by Hamamatsu Photonics K.K. The scanner has a 600mm patient aperture and a 225mm axial FOV, which can cover the whole human head and large portion of the body so that a common whole-body scan can be accomplished within 5 bed position with a 3.2mm average transverse resolution at 10mm from the axis of FOV. The paper gives a system performance evaluation of this scanner using GB/T 18988.1-2003/IEC 61675-1：1998 standard, which includes the spatial resolution, tomographic sensitivity, count rate characteristic, scatter fraction and recovery coefficient. At last a human body scanning result is given as an imaging example.

关 键 词：正电子发射断层成像 性能评价 IEC 标准 

分 类 号：TH789[机械工程—仪器科学与技术]