Head-to-head comparison between digital and analog PET of human and phantom images when optimized for maximizing the signal-to-noise ratio from small lesions.
Fiche publication
Date publication
février 2020
Journal
EJNMMI physics
Auteurs
Membres identifiés du Cancéropôle Est :
Pr KARCHER Gilles, Pr MARIE Pierre-Yves, Pr OLIVIER Pierre, Pr VERGER Antoine
Tous les auteurs :
Salvadori J, Odille F, Verger A, Olivier P, Karcher G, Marie PY, Imbert L
Lien Pubmed
Résumé
Routine PET exams are increasingly performed with reduced injected activities, leading to the use of different image reconstruction parameters than the NEMA parameters, in order to prevent from any deleterious decrease in signal-to-noise ratio (SNR) and thus, in lesion detectability. This study aimed to provide a global head-to-head comparison between digital (Vereos, Philips®) and analog (Ingenuity TF, Philips®) PET cameras of the trade-off between SNR and contrast through a wide-ranging number of reconstruction iterations, and with a further reconstruction optimization based on the SNR of small lesions.
Mots clés
Digital PET, Image quality, Optimization, Time-of-flight
Référence
EJNMMI Phys. 2020 Feb 21;7(1):11