Cited by 462Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsMedical Imaging Techniques and Applications

Comparison of multiple tau-PET measures as biomarkers in aging and Alzheimer's disease

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Maass, Anne, Landau, Susan, Baker, Suzanne L., Horng, Andy, Lockhart, Samuel N., La Joie, Renaud, Rabinovici, Gil D., Jagust, William J.·2017·NeuroImage

Abstract

The recent development of tau-specific positron emission tomography (PET) tracers enables in vivo quantification of regional tau pathology, one of the key lesions in Alzheimer's disease (AD). Tau PET imaging may become a useful biomarker for clinical diagnosis and tracking of disease progression but there is no consensus yet on how tau PET signal is best quantified. The goal of the current study was to evaluate multiple whole-brain and region-specific approaches to detect clinically relevant tau PET signal. Two independent cohorts of cognitively normal adults and amyloid-positive (Aβ+) patients with mild cognitive impairment (MCI) or AD-dementia underwent [18 F]AV-1451 PET. Methods for tau tracer quantification included: (i) in vivo Braak staging, (ii) regional uptake in Braak composite regions, (iii) several whole-brain measures of tracer uptake, (iv) regional uptake in AD-vulnerable voxels, and (v) uptake in a priori defined regions. Receiver operating curves characterized accuracy in distinguishing Aβ- controls from AD/MCI patients and yielded tau positivity cutoffs. Clinical relevance of tau PET measures was assessed by regressions against cognition and MR imaging measures. Key tracer uptake patterns were identified by a factor analysis and voxel-wise contrasts. Braak staging, global and region-specific tau measures yielded similar diagnostic accuracies, which differed between cohorts. While all tau measures were related to amyloid and global cognition, memory and hippocampal/entorhinal volume/thickness were associated with regional tracer retention in the medial temporal lobe. Key regions of tau accumulation included medial temporal and inferior/middle temporal regions, retrosplenial cortex, and banks of the superior temporal sulcus. Our data indicate that whole-brain tau PET measures might be adequate biomarkers to detect AD-related tau pathology. However, regional measures covering AD-vulnerable regions may increase sensitivity to early tau PET signal, atrophy and memory decline.

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Authors
Maass, A., Landau, S., Baker, S. L., Horng, A., Lockhart, S. N., La Joie, R., Rabinovici, G. D., & Jagust, W. J.
Affiliations
  • German Center for Neurodegenerative Diseases (DE)
  • University of California, Berkeley (US)
  • Lawrence Berkeley National Laboratory (US)
Corresponding author
Maass, Anne
Venue
NeuroImage
Publisher
Elsevier BV
Published
2017-08
Volume
157
Pages
448-463
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2621105275
Cited by
462
References
12
Citations by year
2026: 43 · 2025: 40 · 2024: 51 · 2023: 56 · 2022: 50 · 2021: 69 · 2020: 62 · 2019: 52 · 2018: 30 · 2017: 8
FWCI
34.16
Type
journal article
Language
en
Open access
Locations
  • NeuroImage (acceptedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • DZNE Pub (submittedVersion)
Funders
  • University of California, San Diego
  • Eli Lilly and Company
  • Biogen
  • National Institute of Biomedical Imaging and Bioengineering
  • Alzheimer's Disease Neuroimaging Initiative
  • Northern California Institute for Research and Education
  • University of Southern California
  • U.S. Department of Defense (W81XWH-12-2-0012)
  • Alzheimer's Association
  • Roche
  • National Institute on Aging
  • AbbVie
  • Alzheimer's Drug Discovery Foundation
  • National Institutes of Health (U01 AG024904)
  • Bristol-Myers Squibb
  • Eisai
  • BioClinica
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 › Radiology, Nuclear Medicine and Imaging › Medical Imaging Techniques and Applications
Keywords
tau PET, Alzheimer's disease, mild cognitive impairment, 18F-AV-1451, Braak staging, tau biomarkers, amyloid, medial temporal lobe, entorhinal cortex, hippocampal atrophy, memory decline, diagnostic accuracy, aging
MeSH terms
Adult, Aged, Aged, 80 and over, Aging, Alzheimer Disease, Carbolines, Female, Humans, Male, Middle Aged, Severity of Illness Index, Cohort Studies, Amyloid beta-Peptides, tau Proteins, Age of Onset, Neocortex, Positron-Emission Tomography, Young Adult, Cognitive Dysfunction

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