Purpose: The aim of this study was to assess the performance measurements of the new PET/CT system Discovery-600 (D-600, GEMS, Milwaukee, WI). Methods: Performance measures were obtained with the National Electrical Manufacturers Association (NEMA) NU 2-2007 procedures. Results: The transverse (axial) spatial resolution FWHMs were 4.9 (5.6) mm and 5.6 (6.4) mm at 1 and 10 cm off axis, respectively. The sensitivity (average at 0 and 10 cm) was 9.6 cps/kBq. The scatter fraction was 36.6% (low energy threshold: 425 keV). The NEC peak rate (k=1) was 75.2 kcps at 12.9 kBq/cc. The hot contrasts for 10, 13, 17, and 22 mm spheres were 41%, 51%, 62%, and 73% and the cold contrasts for 28 and 37 mm spheres were 68% and 72%. Conclusions: The Discovery-600 has good performance for the NEMA NU 2-2007 parameters, particularly in improved sensitivity compared to the scanners of the same Discovery family, D-ST and D-STE
De Ponti, E., Morzenti, S., Guerra, L., Pasquali, C., Arosio, M., Bettinardi, V., et al. (2011). Performance measurements for the PET/CT Discovery-600 using NEMA NU 2-2007 standards. MEDICAL PHYSICS, 38, 968-974.
Citazione: | De Ponti, E., Morzenti, S., Guerra, L., Pasquali, C., Arosio, M., Bettinardi, V., et al. (2011). Performance measurements for the PET/CT Discovery-600 using NEMA NU 2-2007 standards. MEDICAL PHYSICS, 38, 968-974. |
Tipo: | Articolo in rivista - Articolo scientifico |
Carattere della pubblicazione: | Scientifica |
Presenza di un coautore afferente ad Istituzioni straniere: | No |
Titolo: | Performance measurements for the PET/CT Discovery-600 using NEMA NU 2-2007 standards |
Autori: | De Ponti, E; Morzenti, S; Guerra, L; Pasquali, C; Arosio, M; Bettinardi, V; Crespi, A; Gilardi, MC; Messa, MC |
Autori: | |
Data di pubblicazione: | 2011 |
Lingua: | English |
Rivista: | MEDICAL PHYSICS |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1118/1.3544655 |
Appare nelle tipologie: | 01 - Articolo su rivista |