Title
A Mutual Multi-Scale Triplet Graph Convolutional Network for Classification of Brain Disorders Using Functional or Structural Connectivity
Abstract
Brain connectivity alterations associated with mental disorders have been widely reported in both functional MRI (fMRI) and diffusion MRI (dMRI). However, extracting useful information from the vast amount of information afforded by brain networks remains a great challenge. Capturing network topology, graph convolutional networks (GCNs) have demonstrated to be superior in learning network representations tailored for identifying specific brain disorders. Existing graph construction techniques generally rely on a specific brain parcellation to define regions-of-interest (ROIs) to construct networks, often limiting the analysis into a single spatial scale. In addition, most methods focus on the pairwise relationships between the ROIs and ignore high-order associations between subjects. In this letter, we propose a mutual multi-scale triplet graph convolutional network (MMTGCN) to analyze functional and structural connectivity for brain disorder diagnosis. We first employ several templates with different scales of ROI parcellation to construct coarse-to-fine brain connectivity networks for each subject. Then, a triplet GCN (TGCN) module is developed to learn functional/structural representations of brain connectivity networks at each scale, with the triplet relationship among subjects explicitly incorporated into the learning process. Finally, we propose a template mutual learning strategy to train different scale TGCNs collaboratively for disease classification. Experimental results on 1,160 subjects from three datasets with fMRI or dMRI data demonstrate that our MMTGCN outperforms several state-of-the-art methods in identifying three types of brain disorders.
Year
DOI
Venue
2021
10.1109/TMI.2021.3051604
IEEE Transactions on Medical Imaging
Keywords
DocType
Volume
Brain,Brain Diseases,Humans,Magnetic Resonance Imaging
Journal
40
Issue
ISSN
Citations 
4
0278-0062
0
PageRank 
References 
Authors
0.34
0
9
Name
Order
Citations
PageRank
Dongren Yao143.09
Jing Sui244.53
Mingliang Wang300.68
Erkun Yang431.78
Yeerfan Jiaerken500.34
Na Luo600.68
Pew-Thian Yap7109393.77
Mingxia Liu843241.14
Dinggang Shen97837611.27