Investigation of the possibility of improving spatial resolution in SPECT with the combination of LaBr3:Ce-based detector and 3D-OSEM reconstruction algorithms
✍ Scribed by Khalid S. Alzimami; Salem A. Sassi; Abdulrahman A. Alfuraih; Lefteris Livieratos; Nicholas M. Spyrou
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 505 KB
- Volume
- 633
- Category
- Article
- ISSN
- 0168-9002
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✦ Synopsis
This study investigates the potential of improving spatial resolution in SPECT imaging using a combination of LaBr 3 :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 LaBr 3 :Ce detectors suggests better resolution performance at all spatial frequencies. In comparison to conventional NaI(Tl) scintillators, a combination of the LaBr 3 :Ce crystal and 3D-OSEM incorporating resolution recovery could significantly improve the extrinsic spatial resolution of SPECT images.