Analysis of different detector and electronics defects on F18-FDG images

Felicia Zito, Elisabetta De Bernardi, Mauro Schiavini, Cristina Canzi, Franco Voltini, Stefano Agosteo, Paolo Gerundini

Research output: Contribution to journalArticle

Abstract

The effect of malfunctioning detector blocks on accuracy of PET reconstructed images was evaluated qualitatively and quantitatively, by using the ECAT EXACT HR+ scanner. A procedure to simulate defective block was carried out after analyzing and comparing blank scans obtained with detection system in good operation with those having some faulty block detectors. Different levels of detector damages were simulated and tested with phantom studies. The obtained results allowed to better identify type and entity of the artifact expected on reconstructed data and then to know cases of malfunctioning blocks that really need to stop clinical activity.

Original languageEnglish
Pages (from-to)493-497
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume571
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - Feb 1 2007

Keywords

  • Faulty detectors
  • PET scanner
  • Quality control

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

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