System integration for a SPECT system featuring digital waveform acquisition

Neil Momsen, Garrett Richards, Lars R Furenlid

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have developed a preclinical rabbit cardiac SPECT system by re-engineering a classical clinical SPECT scanner with state-of-the-art electronics and control systems. Notable features include digital waveform capture of the time-dependent outputs of the photomultiplier tubes (PMT). The digitization of the scintillation pulses allows for the incorporation of the entire waveform into the maximum-likelihood estimation (MLE) of event parameters (x, y, energy, etc.), rather than one scalar (i.e. integrated current). We present here details of the waveform-inclusive MLE, the measurements of the mean-detector-response functions, and the determination of the point spread function, along with the associated acceleration via graphics-processor-unit (GPU) programming. Additionally, calibration algorithms of the system are discussed.

Original languageEnglish (US)
Title of host publicationRadiation Detectors in Medicine, Industry, and National Security XIX
EditorsH. Bradford Barber, Lars R. Furenlid, Gary P. Grim
PublisherSPIE
Volume10763
ISBN (Electronic)9781510620971
DOIs
StatePublished - Jan 1 2018
EventRadiation Detectors in Medicine, Industry, and National Security XIX 2018 - San Diego, United States
Duration: Aug 22 2018Aug 23 2018

Other

OtherRadiation Detectors in Medicine, Industry, and National Security XIX 2018
CountryUnited States
CitySan Diego
Period8/22/188/23/18

Keywords

  • Photon Processing
  • Preclinical SPECT
  • SPECT

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Momsen, N., Richards, G., & Furenlid, L. R. (2018). System integration for a SPECT system featuring digital waveform acquisition. In H. B. Barber, L. R. Furenlid, & G. P. Grim (Eds.), Radiation Detectors in Medicine, Industry, and National Security XIX (Vol. 10763). [1076304] SPIE. https://doi.org/10.1117/12.2326512