J Comput Assist Tomogr. 1984 Feb;8(1):88-94.

Positron emission tomography and computed tomography assessments of the aging human brain.

de Leon MJ, George AE, Ferris SH, Christman DR, Fowler JS, Gentes CI, Brodie J, Reisberg B, Wolf AP.

Abstract

The relationship between alterations in brain structure and brain function was studied in vivo in both young and elderly human subjects. Computed tomography revealed significant age-related ventricular and cortical sulcal dilatation. The cortical changes were most closely related to age. Positron emission tomography failed to show regional changes in brain glucose metabolic rate. The results suggest that the normal aging brain undergoes structural atrophic changes without incurring regional metabolic changes. Examination of the correlations between the structural and the metabolic measures revealed no significant relationships. These data are discussed with respect to the significant structure-function relationships that have been reported in Alzheimer disease.

PMID:: 6606657; [PubMed - indexed for MEDLINE]

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