We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
THREE-DIMENSIONAL IMAGE RECONSTRUCTION IN J-PET USING FILTERED BACK-PROJECTION METHOD.
- Authors
SHOPA, R. Y.; KLIMASZEWSKI, K.; KOWALSKI, P.; KRZEMIEŃ, W.; RACZYŃSKI, L.; WIŚLICKI, W.; BIAŁAS, P.; CURCEANU, C.; CZERWIŃSKI, E.; DULSKI, K.; GAJOS, A.; GŁOWACZ, B.; GORGOL, M.; HIESMAYR, B.; JASIŃSKA, B.; KISIELEWSKA-KAMIŃSKA, D.; KORCYL, G.; KOZIK, T.; KRAWCZYK, N.; KUBICZ, E.
- Abstract
We present a method and preliminary results of the image reconstruction in the Jagiellonian PET tomograph. Using GATE (Geant4 Application for Tomographic Emission), interactions of the 511 keV photons with a cylindrical detector were generated. Pairs of such photons, flying backto- back, originate from e+e- annihilations inside a 1 mm spherical source. Spatial and temporal coordinates of hits were smeared using experimental resolutions of the detector. We incorporated the algorithm of the 3D Filtered Back Projection, implemented in the STIR and TomoPy software packages, which differ in approximation methods. Consistent results for the Point Spread Functions of ~ 5÷7 mm and ~ 9÷20 mm were obtained, using STIR, for transverse and longitudinal directions, respectively, with no time-of-flight information included.
- Subjects
IMAGE reconstruction; POSITRON emission tomography; IMAGE processing; INTERPOLATION algorithms; IMAGING systems
- Publication
Acta Physica Polonica B, 2017, Vol 48, Issue 10, p1757
- ISSN
0587-4254
- Publication type
Article
- DOI
10.5506/APhysPolB.48.1757