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Investigating the c...
Investigating the clinico-anatomical dissociation in the behavioral variant of Alzheimer disease
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- Singleton, Ellen H. (author)
- Vrije Universiteit Amsterdam
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- Pijnenburg, Yolande A.L. (author)
- Vrije Universiteit Amsterdam
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- Sudre, Carole H. (author)
- King's College London
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- Groot, Colin (author)
- Vrije Universiteit Amsterdam
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Kochova, Elena (author)
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- Barkhof, Frederik (author)
- University College London
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- La Joie, Renaud (author)
- University of California, San Francisco
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- Rosen, Howard J. (author)
- University of California, San Francisco
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- Seeley, William W. (author)
- University of California, San Francisco
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- Miller, Bruce (author)
- University of California, San Francisco
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- Cardoso, M. Jorge (author)
- University College London,King's College London
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- Papma, Janne (author)
- Erasmus University Medical Center
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- Scheltens, Philip (author)
- Vrije Universiteit Amsterdam
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- Rabinovici, Gil D. (author)
- University of California, Berkeley,University of California, San Francisco,Lawrence Berkeley National Laboratory
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- Ossenkoppele, Rik (author)
- Lund University,Lunds universitet,Klinisk minnesforskning,Forskargrupper vid Lunds universitet,Clinical Memory Research,Lund University Research Groups,Vrije Universiteit Amsterdam
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(creator_code:org_t)
- 2020-11-14
- 2020
- English.
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In: Alzheimer's Research and Therapy. - : Springer Science and Business Media LLC. - 1758-9193. ; 12:1
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http://dx.doi.org/10... (free)
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https://alzres.biome...
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Abstract
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- Background: We previously found temporoparietal-predominant atrophy patterns in the behavioral variant of Alzheimer’s disease (bvAD), with relative sparing of frontal regions. Here, we aimed to understand the clinico-anatomical dissociation in bvAD based on alternative neuroimaging markers. Methods: We retrospectively included 150 participants, including 29 bvAD, 28 “typical” amnestic-predominant AD (tAD), 28 behavioral variant of frontotemporal dementia (bvFTD), and 65 cognitively normal participants. Patients with bvAD were compared with other diagnostic groups on glucose metabolism and metabolic connectivity measured by [18F]FDG-PET, and on subcortical gray matter and white matter hyperintensity (WMH) volumes measured by MRI. A receiver-operating-characteristic-analysis was performed to determine the neuroimaging measures with highest diagnostic accuracy. Results: bvAD and tAD showed predominant temporoparietal hypometabolism compared to controls, and did not differ in direct contrasts. However, overlaying statistical maps from contrasts between patients and controls revealed broader frontoinsular hypometabolism in bvAD than tAD, partially overlapping with bvFTD. bvAD showed greater anterior default mode network (DMN) involvement than tAD, mimicking bvFTD, and reduced connectivity of the posterior cingulate cortex with prefrontal regions. Analyses of WMH and subcortical volume showed closer resemblance of bvAD to tAD than to bvFTD, and larger amygdalar volumes in bvAD than tAD respectively. The top-3 discriminators for bvAD vs. bvFTD were FDG posterior-DMN-ratios (bvADbvFTD, area under the curve [AUC] range 0.85–0.91, all p < 0.001). The top-3 for bvAD vs. tAD were amygdalar volume (bvAD>tAD), MRI anterior-DMN-ratios (bvAD
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Keyword
- Alzheimer’s disease
- Behavior
- Frontotemporal dementia
- MRI
- PET
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Singleton, Ellen ...
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Pijnenburg, Yola ...
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Sudre, Carole H.
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Groot, Colin
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Kochova, Elena
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Barkhof, Frederi ...
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show more...
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La Joie, Renaud
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Rosen, Howard J.
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Seeley, William ...
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Miller, Bruce
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Cardoso, M. Jorg ...
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Papma, Janne
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Scheltens, Phili ...
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Rabinovici, Gil ...
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Ossenkoppele, Ri ...
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Neurology
- Articles in the publication
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Alzheimer's Rese ...
- By the university
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Lund University