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Related Concept Videos

Alzheimer's Disease: Overview01:26

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Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
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Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data
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Cross-View Neuroimage Pattern Analysis in Alzheimer's Disease Staging.

Sidong Liu1, Weidong Cai1, Sonia Pujol2

  • 1The Biomedical and Multimedia Information Technology Research Group, School of Information Technologies, The University of Sydney Sydney, NSW, Australia.

Frontiers in Aging Neuroscience
|March 5, 2016
PubMed
Summary
This summary is machine-generated.

This study introduces a novel framework for staging Alzheimer's disease (AD) using multiple neuroimaging biomarkers. Combining different imaging data types significantly improves early detection and classification of neurological disorders.

Keywords:
Alzheimer's diseasemild cognitive impairmentmulti-modalneuroimagingpattern recognition

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Area of Science:

  • Neuroscience and Medical Imaging
  • Biomarker Discovery and Application

Background:

  • Early staging of pre-symptomatic and prodromal neurological disorders, like Alzheimer's disease (AD), is critical for dementia prevention and optimizing disease-modifying therapies.
  • Neuroimaging biomarkers are increasingly utilized for early AD detection and predicting conversion from mild cognitive impairment (MCI) and normal control (NC) to AD.
  • While multi-view neuroimaging biomarkers show promise for improved AD staging, the mechanisms of synergy and optimal utilization remain unclear.

Purpose of the Study:

  • To propose and evaluate a cross-view pattern analysis framework for investigating the synergy between different neuroimaging biomarkers in AD staging.
  • To quantitatively analyze nine types of biomarkers from FDG-PET and T1-MRI for classifying AD, MCI, and NC subjects.
  • To understand how to preserve or maximize the performance of multi-view neuroimaging biomarkers in AD staging.

Main Methods:

  • Development of a cross-view pattern analysis framework to explore synergy among neuroimaging biomarkers.
  • Quantitative analysis of nine distinct biomarkers derived from FDG-PET and T1-MRI.
  • Evaluation of biomarker performance in classifying subjects from the Alzheimer's Disease Neuroimaging Initiative (ADNI) baseline cohort into AD, MCI, and NC groups.

Main Results:

  • The analyzed neuroimaging biomarkers effectively depict AD pathology from diverse perspectives, revealing distinct patterns associated with disease progression.
  • Biomarkers were successfully separated into clusters, with each cluster representing a specific pathological aspect.
  • Inter-cluster features consistently outperformed intra-cluster features in AD staging, indicating synergistic benefits of combining diverse biomarker patterns.

Conclusions:

  • The proposed cross-view pattern analysis framework effectively investigates and leverages the synergy between multi-view neuroimaging biomarkers for improved AD staging.
  • Combining complementary neuroimaging biomarkers offers enhanced performance in early detection and classification of Alzheimer's disease and related cognitive states.
  • Future research should focus on optimizing the integration of multi-view biomarkers to maximize their potential in clinical applications for neurological disorders.