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Cited by 75

The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.

White matter imaging changes in subjective and mild cognitive impairment

Selnes, Per, Fjell, Anders M., Gjerstad, Leif, Bjørnerud, Atle, Wallin, Anders, Due-Tønnessen, Paulina, Grambaite, Ramune, Stenset, Vidar, Fladby, Tormod·2012·Alzheimer's & Dementia
DOI 10.1016/j.jalz.2011.07.001
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Abstract

Background: To determine whether white matter (WM) memory network changes accompany early cognitive impairment and whether these changes represent early, pathologically independent axonal affection, we combined WM diffusion tensor imaging and cortical morphometric measurements of normal control subjects, patients with only subjective cognitive impairment (SCI), or mild cognitive impairment (MCI). Methods: We included 66 patients with SCI or MCI and 21 control subjects from a university‐hospital‐based memory clinic in a cross‐sectional study. Morphometric analysis was performed in FreeSurfer, and Tract‐Based Spatial Statistics was used for analysis of diffusion tensor imaging‐derived WM fractional anisotropy, radial diffusivity (DR), and mean diffusivity (MD). Relationships between WM measures and stage were assessed with whole‐brain voxelwise statistics and on a region‐of‐interest basis, with subsequent correction for cortical atrophy. Results: In SCI patients, as compared with control subjects, there were widespread changes in DR and MD. No significant differences in thickness could be demonstrated. In MCI patients, as compared with control subjects, there were widespread changes in DR, MD, and fractional anisotropy; the precuneal and inferior parietal cortices were thinner; and the hippocampus was smaller. Multiple logistic regression analysis eliminated morphometry as an explanatory variable in favor of DR/MD for all regions of interest, except in the precuneus, where both thickness and DR/MD were significant explanatory variables. Conclusions: WM tract degeneration is prominent in SCI and MCI patients, and is at least in part independent of overlying gray matter atrophy.

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Research works printed but not linked: 35

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Metadata

Authors
Selnes, P., Fjell, A. M., Gjerstad, L., Bjørnerud, A., Wallin, A., Due-Tønnessen, P., Grambaite, R., Stenset, V., & Fladby, T.
Affiliations
  • Department of Neurology Faculty Division Akershus University Hospital University of Oslo Lørenskog Norway
  • Department of Psychology Center for the Study of Human Cognition University of Oslo Oslo Norway
  • Department of Neurology Oslo University Hospital Rikshospitalet Oslo Norway
  • Department of Radiology Oslo University Hospital Rikshospitalet Oslo Norway
  • Department of Neurochemistry and Psychiatry Institute of Neuroscience and Physiology Sahlgrenska Academy at Göteborg University SU/Sahlgrenska Gothenburg Sweden
Venue
Alzheimer's & Dementia
Publisher
Wiley
Published
2012-10
Volume
8
Issue
5S
ISSN
  • 1552-5260
  • 1552-5279
DOI
10.1016/j.jalz.2011.07.001
Cited by
75
References
13
Language
en
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Funders
Norges Forskningsråd

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