Cited by 314Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsCerebrovascular and genetic disorders

White matter lesions on magnetic resonance imaging in clinically diagnosed Alzheimer’s disease. Evidence for heterogeneity

SCHELTENS, PH., BARKHOF, F., VALK, J., ALGRA, P. R., HOOP, R. GERRITSEN VAN DER, NAUTA, J., WOLTERS, E. CH.·1992·Brain

Abstract

In a prospective magnetic resonance imaging (MRI) study we evaluated the prevalence and severity of white matter changes in 29 patients with Alzheimer's Disease (AD) and 24 age-matched healthy elderly, all without cerebrovascular risk factors. The AD patients were divided into two groups according to age at onset of symptoms, one with presenile onset AD (n = 13) and one with senile onset AD (n = 16), who were matched for dementia severity. Signal hyperintensities were rated using a semiquantitative scoring method, separately in the periventricular region (PVH) and in the lobar white matter (WMH), as well as in the basal ganglia (BGH) and in the infratentorial region (ITFH). Cortical atrophy as a parameter of grey matter involvement was rated on a 0 (absent) to 3 (severe) scale. We found PVH, WMH and BGH scores to be significantly higher in senile onset AD patients than in age-matched controls. By means of multiple linear logistic regression we found that PVH, WMH and BGH scores were significantly dependent on the diagnosis of senile onset AD, while the PVH score also showed a significant age dependency. Cortical atrophy did not differ significantly between presenile onset AD and senile onset AD patients. These results indicate that presenile onset AD and senile onset AD patients differ with respect to white matter involvement, but not with respect to grey matter involvement on MRI. Since cerebrovascular risk factors were excluded these findings may indicate that senile onset AD patients display more small vessel involvement (arteriolosclerosis) than presenile onset AD patients, suggesting additional (microvascular) factors for the dementia syndrome in senile onset AD. Our data lend support to the growing body of evidence that AD is heterogeneous, consisting of at least two types. Based on our findings two forms can be distinguished: (i) a 'pure' form of the disease, usually with early disease onset, and no more white matter changes than normal for age; (ii) a 'mixed' form, usually with disease onset later in life, and showing more white matter changes on MRI than normal for age.

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Crossref · 10.1093/brain/115.3.735

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Authors
SCHELTENS, P., BARKHOF, F., VALK, J., ALGRA, P. R., HOOP, R. G. V. D., NAUTA, J., & WOLTERS, E. C.
Affiliations
Vrije Universiteit Amsterdam (NL)
Venue
Brain
Published
1992
Volume
115
Issue
3
Pages
735-748
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2071837886
Cited by
314
References
0
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 5 · 2022: 5 · 2021: 3 · 2020: 6 · 2019: 7 · 2018: 1 · 2017: 5 · 2016: 7 · 2015: 11 · 2014: 9 · 2013: 7 · 2012: 9
FWCI
8.25
Type
journal article
Language
en
Open access
closed
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Neurology › Cerebrovascular and genetic disorders
Keywords
Alzheimer's disease, white matter lesions, disease heterogeneity, periventricular white matter hyperintensities, white matter hyperintensities, basal ganglia hyperintensity, cortical atrophy, arteriolosclerosis, cerebral small vessel disease, age of onset, dementia
MeSH terms
Aged, Alzheimer Disease, Basal Ganglia, Brain, Cerebral Ventricles, Female, Humans, Magnetic Resonance Imaging, Male, Meninges, Middle Aged, Prospective Studies

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