Normal aging: Brain morphologic, chemical and physiologic changes detected with in vivo MRI

A. A. Capizzano, T. Moritani, M. Jacob, David E. Warren

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This chapter reviews age-related changes in the brains of healthy elderly subjects as measured with state-of-the-art magnetic resonance imaging (MRI) techniques. The review covers changes in brain structure and volume, water diffusion, biochemical composition of neural tissues, neuronal activity and cerebral blood flow. Imaging older individuals with MRI is associated with unique challenges. Claustrophobia related to the MRI environment was actually found to be lower in subjects over 65 years of age and higher in middle-age individuals, particularly women. The utility of MRI in aging research and clinical practice is improving with the introduction of novel contrast mechanisms to probe the brain tissue. The discussed imaging methods benefit with the emergence of high field MRI scanners, compared to the widely available 1.5T and 3T scanners. A drawback of most of the MRI methods is the difficulty in obtaining quantitative information, unlike imaging schemes such as computed tomography and positron emission tomography.

Original languageEnglish (US)
Title of host publicationThe Wiley Handbook on the Aging Mind and Brain
PublisherWiley-Blackwell
Pages146-163
Number of pages18
ISBN (Electronic)9781118772034
ISBN (Print)9781118771778
DOIs
StatePublished - Jun 20 2017

Keywords

  • Biochemical composition
  • Brain structure
  • Brain volume
  • Cerebral blood flow
  • Magnetic resonance imaging techniques
  • Neuronal activity
  • Older individuals

ASJC Scopus subject areas

  • Psychology(all)

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  • Cite this

    Capizzano, A. A., Moritani, T., Jacob, M., & Warren, D. E. (2017). Normal aging: Brain morphologic, chemical and physiologic changes detected with in vivo MRI. In The Wiley Handbook on the Aging Mind and Brain (pp. 146-163). Wiley-Blackwell. https://doi.org/10.1002/9781118772034.ch8