Towards standardization of absolute SPECT/CT quantification: a multi-center and multi-vendor phantom study.
SPECT/CT
absolute quantification
performance evaluation
recovery coefficient
Journal
EJNMMI physics
ISSN: 2197-7364
Titre abrégé: EJNMMI Phys
Pays: Germany
ID NLM: 101658952
Informations de publication
Date de publication:
26 Dec 2019
26 Dec 2019
Historique:
received:
26
08
2019
accepted:
05
12
2019
entrez:
28
12
2019
pubmed:
28
12
2019
medline:
28
12
2019
Statut:
epublish
Résumé
Absolute quantification of radiotracer distribution using SPECT/CT imaging is of great importance for dosimetry aimed at personalized radionuclide precision treatment. However, its accuracy depends on many factors. Using phantom measurements, this multi-vendor and multi-center study evaluates the quantitative accuracy and inter-system variability of various SPECT/CT systems as well as the effect of patient size, processing software and reconstruction algorithms on recovery coefficients (RC). Five SPECT/CT systems were included: Discovery™ NM/CT 670 Pro (GE Healthcare), Precedence™ 6 (Philips Healthcare), Symbia Intevo™, and Symbia™ T16 (twice) (Siemens Healthineers). Three phantoms were used based on the NEMA IEC body phantom without lung insert simulating body mass indexes (BMI) of 25, 28, and 47 kg/m RC decreased with decreasing sphere diameter for each system. Inter-system variability (MAD) was 16 and 17% for RC Absolute SPECT quantification in a multi-center and multi-vendor setting is feasible, especially when reconstruction protocols are standardized, paving the way for a standard for absolute quantitative SPECT.
Identifiants
pubmed: 31879813
doi: 10.1186/s40658-019-0268-5
pii: 10.1186/s40658-019-0268-5
pmc: PMC6933042
doi:
Types de publication
Journal Article
Langues
eng
Pagination
29Subventions
Organisme : FP7/2007-2013
ID : 602812
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