The effects of pulse pile-up on point-source measurements performed on different PET scanning devices

R. D. Badawi, S. Surti, B. Kemp, R. E. Zimmerman, G. El Fakhri, C. H. Holdsworth, W. A. Worstell

Research output: Contribution to journalConference article

2 Scopus citations

Abstract

We have quantified resolution and contrast loss as a function of noise-equivalent count rate on the GSO-based Philips Allegro and the pixelated Nal CPET2 using previously developed methodology involving the NEMA NU 2-2001 70 cm test phantom and a Na-22 point source. We found that at peak NEC, neither system showed significant loss of resolution. However, after accounting for event loss due to dead time, loss of contrast was seen in both systems.

Original languageEnglish (US)
Article numberM10-208
Pages (from-to)2581-2583
Number of pages3
JournalIEEE Nuclear Science Symposium Conference Record
Volume4
StatePublished - Dec 1 2003
Event2003 IEEE Nuclear Science Symposium Conference Record - Nuclear Science Symposium, Medical Imaging Conference - Portland, OR, United States
Duration: Oct 19 2003Oct 25 2003

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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    Badawi, R. D., Surti, S., Kemp, B., Zimmerman, R. E., El Fakhri, G., Holdsworth, C. H., & Worstell, W. A. (2003). The effects of pulse pile-up on point-source measurements performed on different PET scanning devices. IEEE Nuclear Science Symposium Conference Record, 4, 2581-2583. [M10-208].