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.

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 perform

SUBMITTER: Verger A 

PROVIDER: S-EPMC7990981 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature