Three-dimensional Image Reconstruction in J-PET Using Filtered Back-projection Method

Autor(en)

R. Y. Shopa, K. Klimaszewski, P. Kowalski, W. Krzemien, L. Raczynski, W. Wislicki, P. Bialas, C. Curceanu, E. Czerwinski, K. Dulski, A. Gajos, B. Glowacz, M. Gorgol, B. Hiesmayr, B. Jasinska, D. Kisielewska-Kaminska, G. Korcyl, T. Kozik, N. Krawczyk, E. Kubicz, M. Mohammed, M. Pawlik-Niedzwiecka, S. Niedzwiecki, M. Palka, Z. Rudy, N. G. Sharma, S. Sharma, M. Silarski, M. Skurzok, A. Wieczorek, B. Zgardzinska, M. Zielinski, P. Moskal

Abstrakt

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.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

National Centre for Nuclear Research (NCBJ), Jagiellonian University in Krakow, Istituto Nazionale di Fisica Nucleare (INFN), Roma, Marie Curie-Sklodowska University, University of Mosul

Journal

Acta Physica Polonica B

Band

48

Seiten

1757-1765

Anzahl der Seiten

9

ISSN

0587-4254

DOI

https://doi.org/10.5506/APhysPolB.48.1757

Publikationsdatum

10-2017

Peer-reviewed

Ja

ÖFOS 2012

103012 Hochenergiephysik, 206003 Medizinische Physik

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/eb972eb5-b226-4b17-a1e7-33856f66b09c