Cited by 330Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsMedical Image Segmentation Techniques

Alzheimer Disease: Quantitative Structural Neuroimaging for Detection and Prediction of Clinical and Structural Changes in Mild Cognitive Impairment

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McEvoy, Linda K., Fennema-Notestine, Christine, Roddey, J. Cooper, Hagler, Donald J., Holland, Dominic, Karow, David S., Pung, Christopher J., Brewer, James B. +1 more·2009·Radiology

Abstract

PURPOSE: To use structural magnetic resonance (MR) images to identify a pattern of regional atrophy characteristic of mild Alzheimer disease (AD) and to investigate whether presence of this pattern prospectively can aid prediction of 1-year clinical decline and increased structural loss in mild cognitive impairment (MCI). MATERIALS AND METHODS: The study was conducted with institutional review board approval and compliance with HIPAA regulations. Written informed consent was obtained from each participant. High-throughput volumetric segmentation and cortical surface reconstruction methods were applied to MR images from 84 subjects with mild AD, 175 with MCI, and 139 healthy control (HC) subjects. Stepwise linear discriminant analysis was used to identify regions that best can aid discrimination of HC subjects from subjects with AD. A classifier trained on data from HC subjects and those with AD was applied to data from subjects with MCI to determine whether presence of phenotypic AD atrophy at baseline was predictive of clinical decline and structural loss. RESULTS: Atrophy in mesial and lateral temporal, isthmus cingulate, and orbitofrontal areas aided discrimination of HC subjects from subjects with AD, with fully cross-validated sensitivity of 83% and specificity of 93%. Subjects with MCI who had phenotypic AD atrophy showed significantly greater 1-year clinical decline and structural loss than those who did not and were more likely to have progression to probable AD (annual progression rate of 29% for subjects with MCI who had AD atrophy vs 8% for those who did not). CONCLUSION: Semiautomated, individually specific quantitative MR imaging methods can be used to identify a pattern of regional atrophy in MCI that is predictive of clinical decline. Such information may aid in prediction of patient prognosis and increase the efficiency of clinical trials.

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Crossref · 10.1148/radiol.2511080924

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  • A brain atrophy score derived using linear discrimination analysis from healthy controls and AD patient data was better for predicting one-year cognitive decline than atrophy in medial temporal structures alone.

    ““Brain atrophy score” was derived using the linear discrimination analysis from healthy controls and AD patient’s data, found to be better for predicting one-year cognitive decline than atrophy in medial temporal structures alone.”
  • The brain atrophy score was ameliorated by adding MMSE scores and APOE ε4 allele number to the model.

    “Later this brain atrophy score was ameliorated by Mini-Mental State Exam (MMSE) scores and APOE ε4 alleles number to the model [89].”

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Authors
McEvoy, L. K., Fennema-Notestine, C., Roddey, J. C., Hagler, D. J., Holland, D., Karow, D. S., Pung, C. J., Brewer, J. B., & Dale, A. M.
Affiliations
University of California San Diego (US)
Venue
Radiology
Published
2009-04
Volume
251
Issue
1
Pages
195-205
ISSN
  • 0033-8419 (ISSN-L)
  • 1527-1315
OpenAlex
W2126927216
Cited by
330
References
66
Citations by year
2026: 6 · 2025: 12 · 2024: 14 · 2023: 9 · 2022: 14 · 2021: 19 · 2020: 10 · 2019: 18 · 2018: 16 · 2017: 11 · 2016: 23 · 2015: 21 · 2014: 19 · 2013: 21 · 2012: 28
FWCI
23.69
Type
journal article
Language
en
Open access
Locations
  • Radiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Foundation for the National Institutes of Health
  • Alzheimer's Association
  • Bristol-Myers Squibb
  • Eli Lilly and Company
  • Pfizer
  • AstraZeneca
  • GlaxoSmithKline
  • Northern California Institute for Research and Education
  • Eisai
  • National Institutes of Health (5u01ag024904-10)
  • U.S. Food and Drug Administration
  • University of California, Los Angeles
  • University of California, San Diego
  • National Institute on Aging (U01-AG-024904, R01AG022381, K01AG029218, U19AG010483)
  • National Institute of Biomedical Imaging and Bioengineering
  • National Center for Research Resources (U24RR021382)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
Keywords
Alzheimer's disease, mild cognitive impairment, regional brain atrophy, structural neuroimaging, 3D image segmentation, cortical surface reconstruction, linear discriminant analysis, conversion to dementia, temporal lobe atrophy, orbitofrontal cortex, prognosis
MeSH terms
Aged, Aged, 80 and over, Algorithms, Alzheimer Disease, Artificial Intelligence, Atrophy, Brain, Cognition Disorders, Female, Humans, Image Enhancement, Image Interpretation, Computer-Assisted, Male, Middle Aged, Pattern Recognition, Automated, Sensitivity and Specificity, Reproducibility of Results

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