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Related Experiment Videos

A decrease in cerebral cortex intensity on T2-weighted with ageing images of normal subjects

Y Imon1, S Yamaguchi, S Katayama

  • 1Department of Geriatrics, Tokyo Medical College, Japan.

Neuroradiology
|May 23, 1998
PubMed
Summary

Brain MRI T2-weighted imaging reveals reduced signal intensity in the cerebral cortex with aging. This age-related change, particularly in temporal and parietal regions, may indicate senile alterations in brain tissue.

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Area of Science:

  • Neuroimaging
  • Gerontology
  • Radiology

Background:

  • Aging is associated with structural and functional changes in the brain.
  • Magnetic Resonance Imaging (MRI) is a key tool for studying brain alterations.

Purpose of the Study:

  • To investigate age-related changes in cerebral cortex signal intensity on T2-weighted MRI.
  • To identify specific cortical regions affected by these intensity changes.

Main Methods:

  • Review of T2-weighted MRI scans from 83 normal subjects.
  • Measurement of signal intensity in the cerebral cortex of 30 randomly selected subjects.

Main Results:

  • Low-intensity areas were more prevalent in the cerebral cortex of older subjects.

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  • Signal intensity varied across different cortical regions.
  • A decrease in signal intensity with aging was observed in the temporal and parietal cortices.

    • Conclusions:

    • Age-related decreases in cerebral cortex signal intensity on T2-weighted MRI are evident.
    • These findings suggest potential senile changes in brain tissue.
    • The temporal cortex may show less apparent low intensity due to its higher baseline signal.