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Related Experiment Videos

Diffusion tensor imaging and aging - a review.

Michael Moseley1

  • 1Department of Radiology, Lucas MR Center, Stanford University School of Medicine, CA 94305-5488, USA. moseley@stanford.edu

NMR in Biomedicine
|December 19, 2002
PubMed
Summary
This summary is machine-generated.

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Diffusion tensor imaging (DTI) reveals declines in white matter organization during aging. This technique is sensitive to subtle aging-related changes missed by conventional MRI.

Area of Science:

  • Neuroimaging
  • Aging Research
  • Biophysics

Background:

  • Diffusion tensor imaging (DTI) non-invasively maps microscopic structural information of oriented tissues.
  • DTI is increasingly utilized in studies of the aging population.
  • White matter undergoes significant declines in organization during normal and abnormal aging.

Purpose of the Study:

  • To investigate the utility of DTI in assessing age-related changes in white matter microstructure.
  • To highlight DTI's sensitivity to subtle pathological processes in aging.

Main Methods:

  • Utilized diffusion tensor imaging (DTI) to measure water proton diffusion in vivo.
  • Analyzed anisotropic diffusion patterns indicative of white matter organization.

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Main Results:

  • Observed significant declines in white matter ordering in aging individuals.
  • DTI detected subtle microstructural changes not apparent with conventional MRI.

Conclusions:

  • DTI is a valuable tool for characterizing age-related white matter alterations.
  • Anisotropic diffusion measurements by DTI are sensitive to early or subtle disease processes in aging.