Cited by 47Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsCancer-related cognitive impairment studies

Subtyping of mild cognitive impairment using a deep learning model based on brain atrophy patterns

Open access
Kwak, Kichang, Giovanello, Kelly S., Bozoki, Andrea, Styner, Martin, Dayan, Eran·2021·Cell Reports Medicine

Published version of a preprint

Abstract

Trajectories of cognitive decline vary considerably among individuals with mild cognitive impairment (MCI). To address this heterogeneity, subtyping approaches have been developed, with the objective of identifying more homogeneous subgroups. To date, subtyping of MCI has been based primarily on cognitive measures, often resulting in indistinct boundaries between subgroups and limited validity. Here, we introduce a subtyping method for MCI based solely upon brain atrophy. We train a deep learning model to differentiate between Alzheimer's disease (AD) and cognitively normal (CN) subjects based on whole-brain MRI features. We then deploy the trained model to classify MCI subjects based on whole-brain gray matter resemblance to AD-like or CN-like patterns. We subsequently validate the subtyping approach using cognitive, clinical, fluid biomarker, and molecular imaging data. Overall, the results suggest that atrophy patterns in MCI are sufficiently heterogeneous and can thus be used to subtype individuals into biologically and clinically meaningful subgroups.

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Crossref · 10.1016/j.xcrm.2021.100467

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  • AI technologies are being developed to detect early signs of dementia through speech and language patterns analyzing short snippets of speech to predict and monitor cognitive decline.

    “Notably, there are AI technologies being developed to detect early signs of dementia through speech and language patterns analyzing short snippets of speech to predict and monitor cognitive decline (Kwak et al., 2021).”

    From The impact of digital technology, social media, and artificial intelligence on cognitive functions: a review (2023) · cites this paper as Kwak et al., 2021

    The Discussion describes predicting progression from mild cognitive impairment to Alzheimer’s disease using brain-atrophy patterns, not speech. The Methods mention language tests, but neither those passages nor searches for short speech snippets and speech-pattern analysis establish the claimed AI technology. (LLM, conf=0.76)

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Research works printed but not linked: 3

  1. [29]Huang G. Liu Z. Van Der Maaten L. Weinberger K.Q. Densely connected convolutional networks. In Proceedings - 30th IEEE Conference on Computer Vision and Pattern Recognition 2017 CVPR 2261 2269
  2. [41]Hosseini-Asl E. Keynton R. El-Baz A. Alzheimer’s disease diagnostics by adaptation of 3D convolutional network. In Proceedings - International Conference on Image Processing ICIP 2016 126 130
  3. [78]Kingma D.P. Ba J.L. Adam: A method for stochastic optimization. In 3rd International Conference on Learning Representations. ICLR 2015 - Conference Track Proceedings 2015

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Authors
Kwak, K., Giovanello, K. S., Bozoki, A., Styner, M., & Dayan, E.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
Dayan, Eran
Venue
Cell Reports Medicine
Publisher
Elsevier BV
Published
2021-12
Volume
2
Issue
12
Pages
100467
ISSN
2666-3791 (ISSN-L)
OpenAlex
W4206353576
Cited by
47
References
90
Citations by year
2026: 7 · 2025: 7 · 2024: 14 · 2023: 12 · 2022: 7
FWCI
5.91
Type
journal article
Language
en
Open access
Locations
  • Cell Reports Medicine (publishedVersion, cc-by-nc-nd)
  • medRxiv (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion, other-oa)
  • UNC Libraries
Funders
  • Pfizer
  • Takeda Pharmaceutical Company
  • Genentech
  • Northern California Institute for Research and Education
  • Merck
  • Alzheimer's Disease Neuroimaging Initiative
  • Bristol-Myers Squibb
  • BioClinica
  • Alzheimer's Drug Discovery Foundation
  • Novartis Pharmaceuticals Corporation
  • National Institute on Aging (R01AG062590)
  • AbbVie
  • National Institute of Biomedical Imaging and Bioengineering
  • GE Healthcare
  • Alzheimer's Association
  • Fujirebio US
  • Janssen Research and Development
  • Servier
  • National Institutes of Health (P01 AG003991, P01 AG026276, P30 NS09857781, P50 AG00561, R01 AG043434, R01 EB009352, UL1 TR000448)
  • Biogen
  • H. Lundbeck A/S
  • U.S. Department of Defense (W81XWH-12-2-0012)
  • University of Southern California
  • IXICO
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 › Pulmonary and Respiratory Medicine › Cancer-related cognitive impairment studies
Keywords
mild cognitive impairment, brain atrophy patterns, Alzheimer's disease, gray matter atrophy, deep learning classification, cognitive decline trajectories, fluid biomarkers, molecular imaging
MeSH terms
Deep Learning, Aged, Atrophy, Brain, Cognition, Female, Humans, Male, Reproducibility of Results, Cohort Studies, Biomarkers, Positron-Emission Tomography, Cognitive Dysfunction

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