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A high resolution scintillator based SPECT detector with digital pulse processing (SPECTatress)

Karel Deprez (UGent) , Roel Van Holen (UGent) , Steven Staelens (UGent) and Stefaan Vandenberghe (UGent)
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Abstract
SPECT scanners using multi-pinhole collimators benefit from modular detectors having a high spatial resolution. Such detectors can be placed closer to the collimator and perpendicular to the pinhole axis (thereby limiting DOI spatial resolution degradation). Current clinical gamma ray cameras have a large area and a poor spatial resolution. This proceeding describes the architecture of SPECTatress, a modular high resolution gamma camera. A brief summary of the electronics and results obtained with the center-of-gravity positioning algorithm have been presented previously (Imaging 2010 conference, Stockholm). Here we present a detailed overview of the pre-amplifiers and the algorithms used in the FPGA. Results using a GPU accelerated MLE algorithm are shown. This measurement indicates a spatial resolution of 1.1mm FWHM in the center of the detector and an energy resolution of 9% FWHM.
Keywords
BRAIN SPECT

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Citation

Please use this url to cite or link to this publication:

Chicago
Deprez, Karel, Roel Van Holen, Steven Staelens, and Stefaan Vandenberghe. 2010. “A High Resolution Scintillator Based SPECT Detector with Digital Pulse Processing (SPECTatress).” In IEEE Nuclear Science Symposium Conference Record, 3100–3104. New York, NY, USA: IEEE.
APA
Deprez, K., Van Holen, R., Staelens, S., & Vandenberghe, S. (2010). A high resolution scintillator based SPECT detector with digital pulse processing (SPECTatress). IEEE Nuclear Science Symposium Conference Record (pp. 3100–3104). Presented at the 2010 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2010), New York, NY, USA: IEEE.
Vancouver
1.
Deprez K, Van Holen R, Staelens S, Vandenberghe S. A high resolution scintillator based SPECT detector with digital pulse processing (SPECTatress). IEEE Nuclear Science Symposium Conference Record. New York, NY, USA: IEEE; 2010. p. 3100–4.
MLA
Deprez, Karel, Roel Van Holen, Steven Staelens, et al. “A High Resolution Scintillator Based SPECT Detector with Digital Pulse Processing (SPECTatress).” IEEE Nuclear Science Symposium Conference Record. New York, NY, USA: IEEE, 2010. 3100–3104. Print.
@inproceedings{1267515,
  abstract     = {SPECT scanners using multi-pinhole collimators benefit from modular detectors having a high spatial resolution. Such detectors can be placed closer to the collimator and perpendicular to the pinhole axis (thereby limiting DOI spatial resolution degradation). Current clinical gamma ray cameras have a large area and a poor spatial resolution. This proceeding describes the architecture of SPECTatress, a modular high resolution gamma camera. A brief summary of the electronics and results obtained with the center-of-gravity positioning algorithm have been presented previously (Imaging 2010 conference, Stockholm). Here we present a detailed overview of the pre-amplifiers and the algorithms used in the FPGA. Results using a GPU accelerated MLE algorithm are shown. This measurement indicates a spatial resolution of 1.1mm FWHM in the center of the detector and an energy resolution of 9\% FWHM.},
  articleno    = {M18-24},
  author       = {Deprez, Karel and Van Holen, Roel and Staelens, Steven and Vandenberghe, Stefaan},
  booktitle    = {IEEE Nuclear Science Symposium Conference Record},
  isbn         = {9781424491063},
  issn         = {1082-3654},
  keyword      = {BRAIN SPECT},
  language     = {eng},
  location     = {Knoxville, TN, USA},
  pages        = {M18-24:3100--M18-24:3104},
  publisher    = {IEEE},
  title        = {A high resolution scintillator based SPECT detector with digital pulse processing (SPECTatress)},
  url          = {http://dx.doi.org/10.1109/NSSMIC.2010.5874371},
  year         = {2010},
}

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