System integration for a SPECT system featuring digital waveform acquisition

Neil Momsen; Garrett Richards; Lars R Furenlid

doi:10.1117/12.2326512

System integration for a SPECT system featuring digital waveform acquisition

Neil Momsen, Garrett Richards, Lars R Furenlid

Medical Imaging

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English (US)
Title of host publication	Radiation Detectors in Medicine, Industry, and National Security XIX
Editors	H. Bradford Barber, Lars R. Furenlid, Gary P. Grim
Publisher	SPIE
Volume	10763
ISBN (Electronic)	9781510620971
DOIs	https://doi.org/10.1117/12.2326512
State	Published - Jan 1 2018
Event	Radiation Detectors in Medicine, Industry, and National Security XIX 2018 - San Diego, United States Duration: Aug 22 2018 → Aug 23 2018

Other

Other	Radiation Detectors in Medicine, Industry, and National Security XIX 2018
Country	United States
City	San Diego
Period	8/22/18 → 8/23/18

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

Access to Document

10.1117/12.2326512

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System integration for a SPECT system featuring digital waveform acquisition. / Momsen, Neil; Richards, Garrett; Furenlid, Lars R.

Radiation Detectors in Medicine, Industry, and National Security XIX. ed. / H. Bradford Barber; Lars R. Furenlid; Gary P. Grim. Vol. 10763 SPIE, 2018. 1076304.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Momsen, N, Richards, G & Furenlid, LR 2018, System integration for a SPECT system featuring digital waveform acquisition. in HB Barber, LR Furenlid & GP Grim (eds), Radiation Detectors in Medicine, Industry, and National Security XIX. vol. 10763, 1076304, SPIE, Radiation Detectors in Medicine, Industry, and National Security XIX 2018, San Diego, United States, 8/22/18. https://doi.org/10.1117/12.2326512

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