Monte Carlo simulation of digital photon counting PET.
Digital photon counting
Monte Carlo simulation
NEMA
PET
Journal
EJNMMI physics
ISSN: 2197-7364
Titre abrégé: EJNMMI Phys
Pays: Germany
ID NLM: 101658952
Informations de publication
Date de publication:
25 Apr 2020
25 Apr 2020
Historique:
received:
13
12
2019
accepted:
17
03
2020
entrez:
27
4
2020
pubmed:
27
4
2020
medline:
27
4
2020
Statut:
epublish
Résumé
A GATE Monte Carlo model of the Philips Vereos digital photon counting PET imaging system using silicon photo-multiplier detectors was proposed. It was evaluated against experimental data in accordance with NEMA guidelines. Comparisons were performed using listmode data in order to remain independent of image reconstruction algorithms. An original line of response-based method is proposed to estimate intrinsic spatial resolution without reconstruction. Four sets of experiments were performed: (1) count rates and scatter fraction, (2) energy and timing resolutions, (3) sensitivity, and (4) intrinsic spatial resolution. Experimental and simulated data were found to be in good agreement, with overall differences lower than 10% for activity concentrations used in most standard clinical applications. Illustrative image reconstructions were provided. In conclusion, the proposed Monte Carlo model was validated and can be used for numerous studies such as optimizing acquisition parameters or reconstruction algorithms.
Identifiants
pubmed: 32335787
doi: 10.1186/s40658-020-00288-w
pii: 10.1186/s40658-020-00288-w
pmc: PMC7183520
doi:
Types de publication
Journal Article
Langues
eng
Pagination
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