The pons as reference region for intensity normalization in semi-quantitative analysis of brain 18FDG PET: application to metabolic changes related to ageing in conventional and digital control databases

Autor: A. Verger, M. Doyen, J. Y. Campion, Eric Guedj
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: EJNMMI Research, Vol 11, Iss 1, Pp 1-7 (2021)
Druh dokumentu: article
ISSN: 2191-219X
DOI: 10.1186/s13550-021-00771-0
Popis: Abstract Background The objective of the study is to define the most appropriate region for intensity normalization in brain 18FDG PET semi-quantitative analysis. The best option could be based on previous absolute quantification studies, which showed that the metabolic changes related to ageing affect the quasi-totality of brain regions in healthy subjects. Consequently, brain metabolic changes related to ageing were evaluated in two populations of healthy controls who underwent conventional (n = 56) or digital (n = 78) 18FDG PET/CT. The median correlation coefficients between age and the metabolism of each 120 atlas brain region were reported for 120 distinct intensity normalizations (according to the 120 regions). SPM linear regression analyses with age were performed on most significant normalizations (FWE, p
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