Performance assessment of a software-based coincidence processor for the EXPLORER total-body PET scanner.
Performance assessment of a software-based coincidence processor for the EXPLORER total-body PET scanner.
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DOI：
10.1088/1361-6560/aadd3c
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发表时间：
2018-09-19
影响因子：
3.5
通讯作者：
Badawi RD
中科院分区：
文献类型：
--
作者：
Leung EK;Judenhofer MS;Cherry SR;Badawi RD
正电子发射断层摄影（PET）中的符合处理通常在数据采集期间完成。然而，在EXPLORER全身PET扫描仪上，我们计划另外存储未配对的单个事件（即单个事件），用于采集后的符合处理。一个基于软件的符合处理器开发的EXPLORER和其性能进行了评估。我们的研究结果表明，数据存储的类型（外围组件互连高速（PCIe）连接的固态驱动器（SSD）与RAID 6硬盘驱动器（HDD）），特别是当多个数据文件并行处理的重合处理器的性能可能会受到显着影响。我们展示了具有双Intel Xeon E5-2650 v4中央处理单元（CPU）和PCIe SSD的48线程计算机节点足以以约150 Mcps的传入单速率处理约120 M单/s。在2个计算机节点的情况下，以这种传入的单个速率进行近实时的符合处理成为可能。
Coincidence processing in positron emission tomography (PET) is typically done during acquisition of the data. However, on the EXPLORER totalbody PET scanner we plan, in addition, to store unpaired single events (i.e. singles) for post-acquisition coincidence processing. A software-based coincidence processor was developed for EXPLORER and its performance was assessed. Our results showed that the performance of the coincidence processor could be significantly impacted by the type of data storage (Peripheral Component Interconnect Express (PCIe)-attached solid state drive (SSD) vs RAID 6 hard disk drives (HDDs)) especially when multiple data files were processed in parallel. We showed that a 48-thread computer node with dual Intel Xeon E5–2650 v4 central processing units (CPUs) and a PCIe SSD was sufficient to process approximately 120 M singles/s at an incoming singles rate of approximately 150 Mcps. With 2 computer nodes, near real-time coincidence processing became possible at this incoming singles rate.
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影响因子：
1.8
作者：
Streun, M;Brandenburg, G;Ziemons, K
通讯作者：
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影响因子：
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DOI：
10.1016/j.ejmp.2014.09.001
发表时间：
2015-02-01
影响因子：
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作者：
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通讯作者：
Badawi, Ramsey D.
影响因子：
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作者：
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通讯作者：
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