Clinical impact of digital and conventional PET control databases for semi-quantitative analysis of brain 18F-FDG digital PET scans

Autor: Elise Mairal, Matthieu Doyen, Thérèse Rivasseau-Jonveaux, Catherine Malaplate, Eric Guedj, Antoine Verger
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: EJNMMI Research, Vol 10, Iss 1, Pp 1-10 (2020)
Druh dokumentu: article
ISSN: 2191-219X
DOI: 10.1186/s13550-020-00733-y
Popis: Abstract Purpose Digital PET cameras markedly improve sensitivity and spatial resolution of brain 18F-FDG PET images compared to conventional cameras. Our study aimed to assess whether specific control databases are required to improve the diagnostic performance of these recent advances. Methods We retrospectively selected two groups of subjects, twenty-seven Alzheimer's Disease (AD) patients and twenty-two healthy control (HC) subjects. All subjects underwent a brain 18F-FDG PET on a digital camera (Vereos, Philips®). These two group (AD and HC) are compared, using a Semi-Quantitative Analysis (SQA), to two age and sex matched controls acquired with a digital PET/CT (Vereos, Philips®) or a conventional PET/CT (Biograph 6, Siemens®) camera, at group and individual levels. Moreover, individual visual interpretation of SPM T-maps was provided for the positive diagnosis of AD by 3 experienced raters. Results At group level, SQA using digital controls detected more marked hypometabolic areas in AD (+ 116 cm3 at p
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