System integration for a SPECT system featuring digital waveform acquisition

Neil Momsen; Garrett Richards; Lars R. Furenlid

doi:10.1117/12.2326512

18 September 2018 System integration for a SPECT system featuring digital waveform acquisition

Neil Momsen, Garrett Richards, Lars R. Furenlid

Proceedings Volume 10763, Radiation Detectors in Medicine, Industry, and National Security XIX; 1076304 (2018) https://doi.org/10.1117/12.2326512
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

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.

Conference Presentation

Citation Download Citation

Neil Momsen, Garrett Richards, and Lars R. Furenlid "System integration for a SPECT system featuring digital waveform acquisition", Proc. SPIE 10763, Radiation Detectors in Medicine, Industry, and National Security XIX, 1076304 (18 September 2018); https://doi.org/10.1117/12.2326512

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available