Extra-low-dose 2D PET imaging (CROSBI ID 708838)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Gribl Koščević, Anita ; Petrinović, Davor
engleski
Extra-low-dose 2D PET imaging
In this paper, a new approach for the 2D PET data acquisition is introduced, which uses the intersections of lines of response (LORs) for the generation of a larger number of virtual LORs in the cases when the number of coincident events is initially small, i.e, when the amount of injected radiotracer is low. This approach is based on the fact that the statistical properties of the unknown 2D process are preserved in the statistical properties of intersections of LORs. The 2D image is reconstructed from virtual LORs using the well-known Filtered back-projection method, thereby achieving high temporal resolution with a reduced dose of radiotracer injected into the living organisms. Moreover, the larger number of virtual LORs yields the reconstructed 2D image of higher spatial resolution compared with the reconstruction from original LORs.
low-dose 2D PET imaging ; intersections of lines of response ; 2D PET image reconstruction ; Filtered backprojection algorithm
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Podaci o prilogu
84-90.
2021.
objavljeno
10.1109/ISPA52656.2021.9552059
Podaci o matičnoj publikaciji
Proceedings of the 12th International Symposium on Image and Signal Processing and Analysis
Petković, T ; Petrinović, D ; Lončarić, S
Zagreb: University of Zagreb, Croatia
978-1-6654-2639-8
1849-2266
1849-2266
Podaci o skupu
12th International Symposium on Image and Signal Processing and Analysis (ISPA 2021)
predavanje
13.09.2021-15.09.2021
Zagreb, Hrvatska