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Image Reconstruction in the Positron Emission Tomography

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Hellenic Nuclear Physics Society   

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Annual Symposium of the Hellenic Nuclear Physics Society  | ΕΚΤ eProceedings   

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Image Reconstruction in the Positron Emission Tomography (EN)
Zioga, M.
Maintas, D.
Mikeli, M.
Nikopoulou, A.
Alexandridi, M.
Rapsomanikis, A.-N.
Stiliaris, E.
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
2012-12-01
Positron Emission Tomography (PET) has become a valuable tool with a broad spectrum of clinical applications in nuclear imaging. PET scanners can collect in vivo information from positron radiotracer distributions, which is further recon- structed to a tomographic image with the help of well established analytical or iterative algorithms. In this current work, an innovative PET image reconstruction method from raw data based on a simple mathematical model is presented. The developed technique utilizes the accumulated density distribution in a predefined voxelized volume of interest. This distribution is calculated by intersecting and weighting the two-gamma annihilation line with the specified voxels. In order to test the efficiency of the new algorithm, GEANT4/GATE simulation studies were performed. In these studies, a cylindrical PET scanner was modeled and the photon interaction points are validated on an accurate physical basis. An appropriate cylin- drical phantom with different positron radiotracers was used and the reconstructed results were compared to the original phantom. (EN)
GEANT4/GATE (EN)
PET (EN)
Image Reconstruction Algorithms (EN)
Monte-Carlo Simulation (EN)
Annual Symposium of the Hellenic Nuclear Physics Society
English
Hellenic Nuclear Physics Society (HNPS) (EN)
2654-0088
2654-007X
Annual Symposium of the Hellenic Nuclear Physics Society; Τόμ. 20 (2012): HNPS2012; 73-79 (EL)
HNPS Advances in Nuclear Physics; Vol. 20 (2012): HNPS2012; 73-79 (EN)
Πνευματική ιδιοκτησία (c) 2019 M. Zioga, A. Nikopoulou, M. Alexandridi, D. Maintas, M. Mikeli, A.-N. Rapsomanikis, E. Stiliaris (EL)
Hellenic Nuclear Physics Society
Annual Symposium of the Hellenic Nuclear Physics Society
Oral contributions



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