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Investigation of the possibility of improving spatial resolution in SPECT with the combination of LaBr3:Ce-based detector and 3D-OSEM reconstruction algorithms

Research output: Contribution to journalArticle

Khalid S. Alzimami, Salem A. Sassi, Abdulrahman A. Alfuraih, Lefteris Livieratos, Nicholas M. Spyrou

Original languageEnglish
Pages (from-to)S289-S291
Number of pages3
JournalNuclear Instruments & Methods In Physics Research Section A, Accelerators, Spectrometers, Detectors And Associated Equipment
Issue numberS1
Publication statusPublished - May 2011

King's Authors


This study investigates the potential of improving spatial resolution in SPECT imaging using a combination of LaBr3:Ce detectors and 3D-OSEM image reconstruction algorithms. Potential spatial resolution improvement was assessed intrinsically and extrinsically using GATE Monte Carlo simulation. Significantly improved MTF of LaBr3:Ce detectors suggests better resolution performance at all spatial frequencies. In comparison to conventional Nal(Tl) scintillators, a combination of the LaBr3:Ce crystal and 3D-OSEM incorporating resolution recovery could significantly improve the extrinsic spatial resolution of SPECT images. (C) 2010 Elsevier B.V. All rights reserved.

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