Identification of early mild cognitive impairment using multi-modal data and graph convolutional networks.

BMC Bioinformatics
Jin LiuJianxin Wang

Abstract

The identification of early mild cognitive impairment (EMCI), which is an early stage of Alzheimer's disease (AD) and is associated with brain structural and functional changes, is still a challenging task. Recent studies show great promises for improving the performance of EMCI identification by combining multiple structural and functional features, such as grey matter volume and shortest path length. However, extracting which features and how to combine multiple features to improve the performance of EMCI identification have always been a challenging problem. To address this problem, in this study we propose a new EMCI identification framework using multi-modal data and graph convolutional networks (GCNs). Firstly, we extract grey matter volume and shortest path length of each brain region based on automated anatomical labeling (AAL) atlas as feature representation from T1w MRI and rs-fMRI data of each subject, respectively. Then, in order to obtain features that are more helpful in identifying EMCI, a common multi-task feature selection method is applied. Afterwards, we construct a non-fully labelled subject graph using imaging and non-imaging phenotypic measures of each subject. Finally, a GCN model is adopted to perform th...Continue Reading

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Citations

Jul 25, 2021·Sensors·David Ahmedt-AristizabalLars Petersson

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Software Mentioned

learn
Analysis of Functional NeuroImages ( AFNI )
MTFS
GCN
EMCI
scikit
LASSO
FreeSurfer
scipy
gLASSO

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