CsAGP: Detecting Alzheimer's disease from multimodal images via dual-transformer with cross-attention and graph pooling

Alzheimer's disease (AD) is a terrible and degenerative disease commonly occurring in the elderly. Early detection can prevent patients from further damage, which is crucial in treating AD. Over the past few decades, it has been demonstrated that neuroimaging can be a critical diagnostic tool f...

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Main Authors: Chaosheng Tang, Mingyang Wei, Junding Sun, Shuihua Wang, Yudong Zhang
Format: Article
Language:English
Published: Elsevier 2023-07-01
Series:Journal of King Saud University: Computer and Information Sciences
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1319157823001726
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author Chaosheng Tang
Mingyang Wei
Junding Sun
Shuihua Wang
Yudong Zhang
author_facet Chaosheng Tang
Mingyang Wei
Junding Sun
Shuihua Wang
Yudong Zhang
author_sort Chaosheng Tang
collection DOAJ
description Alzheimer's disease (AD) is a terrible and degenerative disease commonly occurring in the elderly. Early detection can prevent patients from further damage, which is crucial in treating AD. Over the past few decades, it has been demonstrated that neuroimaging can be a critical diagnostic tool for AD, and the feature fusion of different neuroimaging modalities can enhance diagnostic performance. Most previous studies in multimodal feature fusion have only concatenated the high-level features extracted by neural networks from various neuroimaging images simply. However, a major problem of these studies is overlooking the low-level feature interactions between modalities in the feature extraction stage, resulting in suboptimal performance in AD diagnosis. In this paper, we develop a dual-branch vision transformer with cross-attention and graph pooling, namely CsAGP, which enables multi-level feature interactions between the inputs to learn a shared feature representation. Specifically, we first construct a brand-new cross-attention fusion module (CAFM), which processes MRI and PET images by two independent branches of differing computational complexity. These features are fused merely by the cross-attention mechanism to enhance each other. After that, a concise graph pooling algorithm-based Reshape-Pooling-Reshape (RPR) framework is developed for token selection to reduce token redundancy in the proposed model. Extensive experiments on the Alzheimer's Disease Neuroimaging Initiative (ADNI) database demonstrated that the suggested method obtains 99.04%, 97.43%, 98.57%, and 98.72% accuracy for the classification of AD vs. CN, AD vs. MCI, CN vs. MCI, and AD vs. CN vs. MCI, respectively.
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spelling doaj.art-f0411997edf448fa8b47af113b5f02192023-08-09T04:32:06ZengElsevierJournal of King Saud University: Computer and Information Sciences1319-15782023-07-01357101618CsAGP: Detecting Alzheimer's disease from multimodal images via dual-transformer with cross-attention and graph poolingChaosheng Tang0Mingyang Wei1Junding Sun2Shuihua Wang3Yudong Zhang4School of Computer Science and Technology, Henan Polytechnic University, Jiaozuo, Henan 454000, PR ChinaSchool of Computer Science and Technology, Henan Polytechnic University, Jiaozuo, Henan 454000, PR ChinaSchool of Computer Science and Technology, Henan Polytechnic University, Jiaozuo, Henan 454000, PR China; Corresponding authors.School of Computer Science and Technology, Henan Polytechnic University, Jiaozuo, Henan 454000, PR China; School of Computing and Mathematical Sciences, University of Leicester, Leicester LE1 7RH, UK; Department of Information Systems, Faculty of Computing and Information Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Corresponding authors.School of Computer Science and Technology, Henan Polytechnic University, Jiaozuo, Henan 454000, PR China; School of Computing and Mathematical Sciences, University of Leicester, Leicester LE1 7RH, UK; Department of Information Systems, Faculty of Computing and Information Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Corresponding authors.Alzheimer's disease (AD) is a terrible and degenerative disease commonly occurring in the elderly. Early detection can prevent patients from further damage, which is crucial in treating AD. Over the past few decades, it has been demonstrated that neuroimaging can be a critical diagnostic tool for AD, and the feature fusion of different neuroimaging modalities can enhance diagnostic performance. Most previous studies in multimodal feature fusion have only concatenated the high-level features extracted by neural networks from various neuroimaging images simply. However, a major problem of these studies is overlooking the low-level feature interactions between modalities in the feature extraction stage, resulting in suboptimal performance in AD diagnosis. In this paper, we develop a dual-branch vision transformer with cross-attention and graph pooling, namely CsAGP, which enables multi-level feature interactions between the inputs to learn a shared feature representation. Specifically, we first construct a brand-new cross-attention fusion module (CAFM), which processes MRI and PET images by two independent branches of differing computational complexity. These features are fused merely by the cross-attention mechanism to enhance each other. After that, a concise graph pooling algorithm-based Reshape-Pooling-Reshape (RPR) framework is developed for token selection to reduce token redundancy in the proposed model. Extensive experiments on the Alzheimer's Disease Neuroimaging Initiative (ADNI) database demonstrated that the suggested method obtains 99.04%, 97.43%, 98.57%, and 98.72% accuracy for the classification of AD vs. CN, AD vs. MCI, CN vs. MCI, and AD vs. CN vs. MCI, respectively.http://www.sciencedirect.com/science/article/pii/S1319157823001726Alzheimer's diseaseVision transformerMultimodal image fusionDeep learning
spellingShingle Chaosheng Tang
Mingyang Wei
Junding Sun
Shuihua Wang
Yudong Zhang
CsAGP: Detecting Alzheimer's disease from multimodal images via dual-transformer with cross-attention and graph pooling
Journal of King Saud University: Computer and Information Sciences
Alzheimer's disease
Vision transformer
Multimodal image fusion
Deep learning
title CsAGP: Detecting Alzheimer's disease from multimodal images via dual-transformer with cross-attention and graph pooling
title_full CsAGP: Detecting Alzheimer's disease from multimodal images via dual-transformer with cross-attention and graph pooling
title_fullStr CsAGP: Detecting Alzheimer's disease from multimodal images via dual-transformer with cross-attention and graph pooling
title_full_unstemmed CsAGP: Detecting Alzheimer's disease from multimodal images via dual-transformer with cross-attention and graph pooling
title_short CsAGP: Detecting Alzheimer's disease from multimodal images via dual-transformer with cross-attention and graph pooling
title_sort csagp detecting alzheimer s disease from multimodal images via dual transformer with cross attention and graph pooling
topic Alzheimer's disease
Vision transformer
Multimodal image fusion
Deep learning
url http://www.sciencedirect.com/science/article/pii/S1319157823001726
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AT mingyangwei csagpdetectingalzheimersdiseasefrommultimodalimagesviadualtransformerwithcrossattentionandgraphpooling
AT jundingsun csagpdetectingalzheimersdiseasefrommultimodalimagesviadualtransformerwithcrossattentionandgraphpooling
AT shuihuawang csagpdetectingalzheimersdiseasefrommultimodalimagesviadualtransformerwithcrossattentionandgraphpooling
AT yudongzhang csagpdetectingalzheimersdiseasefrommultimodalimagesviadualtransformerwithcrossattentionandgraphpooling