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

Fiche publication

Date publication

mars 2021

Journal

EJNMMI research

Auteurs

Membres identifiés du Cancéropôle Est :
Pr VERGER Antoine

Tous les auteurs :
Verger A, Doyen M, Campion JY, Guedj E

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/33761019

Résumé

The objective of the study is to define the most appropriate region for intensity normalization in brain FDG 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) FDG 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 < 0.05).