Caudate nucleus hypointensity in the elderly is associated with markers of neurodegeneration on MRI

Neurobiol Aging. 2008 Dec;29(12):1839-46. doi: 10.1016/j.neurobiolaging.2007.05.008. Epub 2007 Jun 28.

Abstract

In this study we investigated patterns of hypointense basal ganglia on T2*-weighted magnetic resonance imaging (MRI) in 413 non-demented elderly (range: 70-82 years, mean 77 years; male/female: 177/239). In addition, we assessed associations between these patterns and age-related changes in the brain. Three patterns were noted: hypointensity limited to the globus pallidus (group I; n=30; 7%), hypointensity of both globus pallidus and putamen (group II; n=272; 66%), and hypointensity of globus pallidus, putamen and caudate nucleus (group III; n=111; 27%). Group III demonstrated a higher volume of white matter hyperintensities, more atrophy, decreased whole brain magnetization transfer ratios and increased T2-values compared to groups I and II. No differences were observed between groups I and II. From this study we conclude that hypointensity of the caudate nucleus is associated with a higher load of age-related cerebral changes. These data suggest that hypointensity of the caudate nucleus could be a new biomarker of age-related changes in the brain.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Aging / pathology*
  • Caudate Nucleus / pathology*
  • Female
  • Humans
  • Magnetic Resonance Imaging / methods*
  • Male
  • Neurodegenerative Diseases / pathology*
  • Reproducibility of Results
  • Sensitivity and Specificity