Performance assessment of a software-based coincidence processor for the EXPLORER total-body PET scanner

Physics in Medicine and Biology
Edwin K LeungRamsey D Badawi

Abstract

Coincidence processing in positron emission tomography (PET) is typically done during acquisition of the data. However, on the EXPLORER total-body 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) versus 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-1 at an incoming singles rate of approximately 150 Mcps. With two computer nodes, near real-time coincidence processing became possible at this incoming singles rate.

References

Sep 24, 1999·Health Physics·M A TriesG E Chabot
Jun 9, 2012·Physics in Medicine and Biology·Jonathan K PoonRamsey D Badawi
Sep 23, 2014·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Eder R MoraesRamsey D Badawi
Sep 3, 2016·Physics in Medicine and Biology·Jared Strydhorst, Irène Buvat
Nov 29, 2016·IEEE Transactions on Medical Imaging·Wuhong LinLihua Yang

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Citations

Nov 21, 2019·Sensors·Wei JiangM Jamal Deen
May 27, 2020·EJNMMI Physics·Stefaan VandenbergheJoel S Karp

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