Three-dimensional image reconstruction in J-PET using Filtered Back Projection method
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 back-to-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.
Cite
@article{arxiv.1710.11058,
title = {Three-dimensional image reconstruction in J-PET using Filtered Back Projection method},
author = {R. Y. Shopa and K. Klimaszewski and P. Kowalski and W. Krzemień and L. Raczyński and W. Wiślicki and P. Białas and C. Curceanu and E. Czerwiński and K. Dulski and A. Gajos and B. Głowacz and M. Gorgol and B. Hiesmayr and B. Jasińska and D. Kisielewska-Kamińska and G. Korcyl and T. Kozik and N. Krawczyk and E. Kubicz and M. Mohammed and M. Pawlik-Niedźwiecka and S. Niedźwiecki and M. Pałka and Z. Rudy and N. G. Sharma and S. Sharma and M. Silarski and M. Skurzok and A. Wieczorek and B. Zgardzińska and M. Zieliński and P. Moskal},
journal= {arXiv preprint arXiv:1710.11058},
year = {2017}
}
Comments
Presented at the 2nd Jagiellonian Symposium on Fundamental and Applied Subatomic Physics, Krak\'ow, Poland, June 4-9, 2017. To be published in Acta Phys. Pol. B