Article(id=1322949764052038175, tenantId=1146029695717560320, journalId=1249024232475115590, issueId=1322949743743213946, articleNumber=null, orderNo=null, doi=10.11834/jig.250535, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1761753600000, receivedDateStr=2025-10-30, revisedDate=1772985600000, revisedDateStr=2026-03-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1793345402967, onlineDateStr=2026-10-30, pubDate=1784131200000, pubDateStr=2026-07-16, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793345402967, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793345402967, creator=13701087609, updateTime=1793345402967, updator=13701087609, issue=Issue{id=1322949743743213946, tenantId=1146029695717560320, journalId=1249024232475115590, year='2026', volume='31', issue='7', pageStart='2279', pageEnd='2686', issueExtLink='null', onlineDate='null', pubDate='1784131200000', pubDateStr='2026-07-16', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793345398125, creator='13701087609', updateTime=1793348592997, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322963144217330568, tenantId=1146029695717560320, journalId=1249024232475115590, issueId=1322949743743213946, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322963144217330569, tenantId=1146029695717560320, journalId=1249024232475115590, issueId=1322949743743213946, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2526, endPage=2537, ext={EN=ArticleExt(id=1322949764458885665, articleId=1322949764052038175, tenantId=1146029695717560320, journalId=1249024232475115590, language=EN, title=Brain structure-function coupling hypergraph neural network, columnId=1322949764341445152, journalTitle=Journal of Image and Graphics, columnName=Foundation Models for Medical Image Analysis, runingTitle=null, highlight=null, articleAbstract=
Objective In recent years,brain networks have become an indispensable cornerstone in brain disorder research. At present,functional magnetic resonance imaging (fMRI) is commonly used to construct functional networks,while diffusion tensor imaging (DTI) is utilized to build structural networks. However,two limitations remain prominent. First,many approaches still operate on a single modality or adopt shallow multimodal fusion,leaving the potential dependency between structural connectivity (SC) and functional connectivity (FC) under-explored. Second,although structure-function coupling (SFC) has been demonstrated to differ across brain regions between healthy controls and patients,its relationship to classification has not been systematically integrated into representation learning to hold biomarker potential. This study aims to operationalize SFC as an explicit prior that guides multimodal representation learning,such that high-order cross-modal associations can be identified and translated into robust diagnostic performance.
Method This study presents SFC-hypergraph neural network (HGNN),an SFC-guided foundational framework that combines a dual-stream encoder,cross-modal reconstruction pretraining,and hypergraph computation to model high-order relationships inside and between SC and FC. The core design is to use an SFC matrix as a bridge that explicitly guides two HGNN branches—one per modality—such that each branch learns modality-appropriate group relations while remaining informed by the other modality. Concretely,the SFC matrix is first constructed to capture the consistency between FC and SC patterns across brain regions by using a rank-based correlation measure. This matrix is fused with each modality through shallow feature mapping to form initial node-level features for the two streams. On the functional stream,hyperedges are formed via the sparse representation method,providing data-driven,high-order groupings that are appropriate for FC. On the structural stream,hyperedges are built with the k-nearest neighbor strategy to reflect global structural associations. Then,each branch employs HGNN layers to realize high-order messages that are passing on its respective hypergraph,encoding latent dependency between SC and FC under SFC guidance. To fully utilize cross-modal dependency,a cross-modal reconstruction pretraining task is introduced. During pretraining,the functional stream is trained to reconstruct the SC matrix while the structural stream reconstructs the FC matrix via decoders. The decoders are optimized with a reconstruction objective combined with a constraint that emphasizes the appropriate symmetry and sparsity of the reconstructed matrices. This pretraining forces the encoder to internalize modality-bridging information under SFC guidance. In the subsequent downstream tuning phase,the encoder parameters are frozen. Then,latent node representations from the two branches are flattened and concatenated into a global feature vector,which is fed into a lightweight multilayer perceptron classifier that is optimized with cross-entropy. Freezing the encoder keeps downstream training simple and stable while preserving the cross-modal dependency captured during pretraining.
Result Experiments are conducted on two public multimodal brain imaging datasets. On the Alzheimer’s disease neuroimaging initiative (ADNI),we use 332 subjects,specifically,64 Alzheimer’s Disease (AD),129 mild cognitive impairment (MCI),and 139 normal control (NC). On the autism brain imaging data exchange (ABIDE),we include 86 subjects with paired fMRI and DTI for autism spectrum disorder (ASD)/NC. We adopt the automated anatomical labeling atlas for both datasets. fMRI data are preprocessed with the data processing assistant for resting-state fMRI and DTI data with the pipeline for analyzing brain diffusion images. The model is implemented in PyTorch and trained on an NVIDIA RTX 4090 GPU. We follow a two-stage training protocol (cross-modal pretraining followed by frozen-encoder tuning) and evaluate with fivefold cross-validation,reporting accuracy (ACC),area under the curve (AUC),F1,and specificity. We compare SFC-HGNN against representative single-modality baselines (BrainNetCNN,GAT,HGNN+,BrainGNN) and multi-modality methods (MME-GCN,Cross-GNN). Across diagnostic tasks,SFC-HGNN achieves state-of-the-art performance,consistently improving ACC,AUC,and F1. Although certain baselines occasionally yield higher specificity,these cases are frequently accompanied by markedly lower F1,suggesting reduced stability. By contrast,SFC-HGNN maintains better overall balance among metrics and demonstrates stronger robustness. Ablation studies further underscore the contributions of the proposed components: 1) introducing SFC as a cross-modal bridge (without pretraining) improves accuracy by 1.6% and 2.3% on AD versus NC and ASD versus NC,respectively,and 2) adding cross-modal reconstruction pretraining brings additional gains of 2.1% and 1.9%. These results indicate that SFC guidance,along with cross-modal reconstruction,effectively encourages the encoder to capture latent SC-FC dependency that transfers to downstream classification. Finally,we conduct significant hyperedge analysis to assess interpretability by using group-level t-tests and visualize discriminative functional and structural hyperedges for AD versus NC and ASD versus NC. The identified regions and connections align with known patterns of network alteration,supporting the neurobiological plausibility of the learned high-order representations.
Conclusion By utilizing SFC as an explicit bridge and pairing dual HGNN encoders with a cross-modal reconstruction pretraining paradigm,this study introduces a principled multimodal framework for brain network analysis and brain disorder diagnosis. The approach encourages each modality to be informed by the other and encode high-order associations that are useful for downstream classification,while a frozen encoder tuning strategy keeps optimization stable and lightweight. On the ADNI and ABIDE datasets,SFC-HGNN consistently surpasses single-modal and multimodal baselines,with gains reflected not only in ACC and AUC but also in better balance between F1 and specificity,highlighting robustness. The significant hyperedge findings further provide neurobiologically plausible insights that complement the quantitative improvements. Overall,SFC-HGNN advances multimodal brain disorder diagnosis by unifying SFC-guided hypergraph encoding,cross-reconstruction pretraining,and simple downstream tuning into a coherent pipeline that achieves superior and reliable performance across datasets.
, authors=Mengqi Lei, Xiangmin Han, Siqi Li, Yue Gao
*, authorsList=Mengqi Lei, Xiangmin Han, Siqi Li, Yue Gao, authorCompany=null, correspAuthors=Yue Gao, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322949768003072556, articleId=1322949764052038175, tenantId=1146029695717560320, journalId=1249024232475115590, language=CN, title=脑结构—功能耦合超图神经网络, columnId=1322949766128218658, journalTitle=中国图象图形学报, columnName=面向医学影像智能分析的基础模型, runingTitle=null, highlight=null, articleAbstract=
目的 现有基于结构连接(structural connectivity,SC)与功能连接(functional connectivity,FC)的脑疾病诊断方法,通常只使用单一模态建模或仅做跨模态的浅层融合,难以充分刻画SC与FC之间的潜在依赖;同时,结构—功能耦合(structure-function coupling,SFC)与分类任务之间的关系尚缺系统性建模。针对上述问题,本文提出一种以SFC为先验引导的跨模态融合脑疾病诊断基础模型——脑结构—功能耦合超图神经网络(structure-function coupling hypergraph neural network,SFC-HGNN)。
方法 SFC-HGNN采用双流超图神经网络作为编码器,以SFC矩阵为中间桥梁,在功能分支与结构分支中分别构建超图以建模两种模态的高阶脑网络,并利用超图卷积学习跨脑区的高阶相互作用;在预训练阶段,设计跨模态交叉重建任务,用功能连接的表征重建结构连接、用结构连接的表征重建功能连接,并引入对称性与稀疏性约束的重建损失;在微调阶段,SFC-HGNN冻结编码器部分的参数,仅训练轻量级多层感知机分类器以完成下游任务的诊断。
结果 为验证方法的有效性,在阿尔茨海默病神经影像学倡议(Alzheimer’s disease neuroimaging initiative,ADNI)和自闭症脑成像数据交换(autism brain imaging data exchange,ABIDE)数据集上进行了广泛的实验。在ADNI数据集上,SFC-HGNN的阿尔兹海默病—正常对照分类任务准确率和特异性分别达到0.705、0.891;在ABIDE数据集上,SFC-HGNN的自闭症谱系障碍—正常对照分类任务准确率和特异性分别达到0.681、0.682,均显著优于对比方法。
结论 以SFC为先验的跨模态交叉重建预训练与超图计算相结合,能够有效捕获SC与FC之间的潜在高阶依赖,显著提升脑疾病诊断的准确性与鲁棒性,为结构—功能耦合在临床辅助诊断中的应用提供了可行路径。
, authors=雷孟奇, 韩向敏, 李思奇, 高跃
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雷孟奇,男,博士研究生,主要研究方向为计算机视觉、视觉语言模型和超图神经网络。E-mail: mengqi-lei@163.com
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韩向敏,男,博士后助理研究员,主要研究方向为医学影像分析。E-mail: simon.xmhan@gmail.com
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韩向敏,男,博士后助理研究员,主要研究方向为医学影像分析。E-mail: simon.xmhan@gmail.com
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李思奇,男,博士后助理研究员,主要研究方向为计算机视觉与机器学习。E-mail: lisiqi19971013@gmail.com
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李思奇,男,博士后助理研究员,主要研究方向为计算机视觉与机器学习。E-mail: lisiqi19971013@gmail.com
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高跃,通信作者,男,副教授,主要研究方向为计算机视觉和超图计算。E-mail: gaoyue@tsinghua.edu.cn
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高跃,通信作者,男,副教授,主要研究方向为计算机视觉和超图计算。E-mail: gaoyue@tsinghua.edu.cn
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结构—功能耦合矩阵的计算过程, figureFileSmall=W6efRsCik4u7Netop7HDCA==, figureFileBig=wYiTee/G7hkZnkDdRjLV0w==, tableContent=null), ArticleFig(id=1322949772222542418, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=EN, label=Fig.2, caption=
Framework of the proposed SFC-HGNN, figureFileSmall=/E0pgxaoeLMcuBMJczMbxg==, figureFileBig=r/s+vWSDsWjvq7Dr1LxWPQ==, tableContent=null), ArticleFig(id=1322949772289651283, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=CN, label=图2, caption=
所提出的SFC-HGNN的框架图, figureFileSmall=/E0pgxaoeLMcuBMJczMbxg==, figureFileBig=r/s+vWSDsWjvq7Dr1LxWPQ==, tableContent=null), ArticleFig(id=1322949772348371540, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=EN, label=Fig.3, caption=
Visualization of FC and SC matrices reconstructed by SFC-HGNN with and without the proposed cross-modal cross- reconstruction pretraining ((a) original FC matrix; (b) reconstructed FC matrix by pre-trained SFC-HGNN; (c) reconstructed FC matrix by untrained SFC-HGNN; (d) original SC matrix; (e) reconstructed SC matrix by pre-trained SFC-HGNN; (f) reconstructed SC matrix by untrained SFC-HGNN), figureFileSmall=I7DCUKdhV9ibjTYKSwKi7A==, figureFileBig=zQbYmx1ckVsMMh3C8nDr4w==, tableContent=null), ArticleFig(id=1322949772411286101, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=CN, label=图3, caption=
经过与未经过跨模态交叉重建预训练的SFC-HGNN所重建的FC与SC矩阵可视化, figureFileSmall=I7DCUKdhV9ibjTYKSwKi7A==, figureFileBig=zQbYmx1ckVsMMh3C8nDr4w==, tableContent=null), ArticleFig(id=1322949772478394966, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=EN, label=Fig.4, caption=
Visualization of significant hyperedges in the AD vs. NC and ASD vs. NC population, figureFileSmall=vE3PAPw0b6wldptqM0uy1Q==, figureFileBig=R/7lHVelT83+NfWEEkSdjA==, tableContent=null), ArticleFig(id=1322949772558086743, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=CN, label=图4, caption=
AD与NC和ASD与NC人群中显著性超边的可视化((a) functional hyperedges; (b) structural hyperedges)
, figureFileSmall=vE3PAPw0b6wldptqM0uy1Q==, figureFileBig=R/7lHVelT83+NfWEEkSdjA==, tableContent=null), ArticleFig(id=1322949772625195608, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=EN, label=Table 1, caption=
Comparison with different methods on different diagnostic tasks, figureFileSmall=null, figureFileBig=null, tableContent=
| 模态 | 方法 | AD vs. NC | AD vs. MCI |
|---|
| ACC | AUC | F1 | SPE | ACC | AUC | F1 | SPE |
|---|
| fMRI | BrainNetCNN | 0.700±0.045 | 0.615±0.090 | 0.337±0.105 | 0.932±0.061 | 0.653±0.070 | 0.666±0.099 | 0.235±0.083 | 0.925±0.066 |
| GAT | 0.668±0.031 | 0.610±0.094 | 0.097±0.071 | 0.909±0.073 | 0.631±0.076 | 0.535±0.062 | 0.381±0.118 | 0.757±0.148 |
| BrainGNN | 0.555±0.113 | 0.529±0.074 | 0.443±0.104 | 0.538±0.289 | 0.625±0.124 | 0.571±0.114 | 0.400±0.181 | 0.676±0.288 |
| HGNN+ | 0.669±0.092 | 0.629±0.097 | 0.316±0.083 | 0.890±0.027 | 0.647±0.030 | 0.627±0.058 | 0.223±0.101 | 0.899±0.067 |
| DTI | BrainNetCNN | 0.695±0.045 | 0.621±0.066 | 0.411±0.151 | 0.472±0.390 | 0.645±0.097 | 0.620±0.040 | 0.485±0.137 | 0.427±0.309 |
| GAT | 0.668±0.031 | 0.537±0.024 | 0.258±0.092 | 0.901±0.077 | 0.658±0.088 | 0.560±0.084 | 0.242±0.194 | 0.901±0.061 |
| BrainGNN | 0.528±0.157 | 0.532±0.115 | 0.457±0.049 | 0.472±0.390 | 0.536±0.164 | 0.517±0.135 | 0.346±0.286 | 0.400±0.490 |
| HGNN+ | 0.689±0.028 | 0.652±0.068 | 0.276±0.093 | 0.939±0.046 | 0.664±0.086 | 0.621±0.052 | 0.260±0.170 | 0.934±0.041 |
| 多模态 | MME-GCN | 0.658±0.052 | 0.643±0.040 | 0.492±0.075 | 0.740±0.082 | 0.615±0.089 | 0.599±0.130 | 0.381±0.169 | 0.735±0.128 |
| Cross-GNN | 0.699±0.046 | 0.659±0.043 | 0.431±0.064 | 0.878±0.093 | 0.654±0.060 | 0.667±0.143 | 0.401±0.129 | 0.893±0.066 |
| SFC-HGNN | 0.705±0.077 | 0.661±0.105 | 0.595±0.059 | 0.891±0.070 | 0.687±0.081 | 0.644±0.138 | 0.612±0.083 | 0.907±0.173 |
| 模态 | 方法 | MCI vs. NC | ASD vs. NC |
|---|
| ACC | AUC | F1 | SPE | ACC | AUC | F1 | SPE |
|---|
| fMRI | BrainNetCNN | 0.595±0.088 | 0.610±0.031 | 0.472±0.086 | 0.815±0.118 | 0.672±0.045 | 0.622±0.038 | 0.601±0.070 | 0.701±0.083 |
| GAT | 0.574±0.119 | 0.597±0.060 | 0.411±0.139 | 0.769±0.227 | 0.614±0.052 | 0.542±0.127 | 0.603±0.121 | 0.651±0.274 |
| BrainGNN | 0.538±0.073 | 0.518±0.064 | 0.587±0.100 | 0.301±0.277 | 0.653±0.086 | 0.581±0.089 | 0.612±0.101 | 0.671±0.189 |
| HGNN+ | 0.526±0.122 | 0.528±0.111 | 0.188±0.158 | 0.827±0.101 | 0.638±0.076 | 0.577±0.102 | 0.598±0.092 | 0.636±0.313 |
| DTI | BrainNetCNN | 0.607±0.123 | 0.613±0.088 | 0.481±0.167 | 0.822±0.111 | 0.640±0.055 | 0.612±0.042 | 0.588±0.085 | 0.684±0.123 |
| GAT | 0.522±0.114 | 0.540±0.051 | 0.393±0.120 | 0.819±0.179 | 0.625±0.051 | 0.554±0.072 | 0.582±0.111 | 0.621±0.264 |
| BrainGNN | 0.531±0.069 | 0.548±0.044 | 0.643±0.104 | 0.119±0.146 | 0.601±0.073 | 0.562±0.065 | 0.568±0.095 | 0.588±0.183 |
| HGNN+ | 0.522±0.008 | 0.532±0.092 | 0.380±0.243 | 0.798±0.102 | 0.628±0.065 | 0.599±0.056 | 0.574±0.099 | 0.651±0.251 |
| 多模态 | MME-GCN | 0.534±0.088 | 0.570±0.059 | 0.544±0.093 | 0.509±0.143 | 0.596±0.083 | 0.553±0.075 | 0.551±0.105 | 0.602±0.219 |
| Cross-GNN | 0.507±0.091 | 0.531±0.150 | 0.484±0.106 | 0.545±0.177 | 0.662±0.050 | 0.630±0.049 | 0.616±0.098 | 0.692±0.150 |
| SFC-HGNN | 0.631±0.053 | 0.623±0.065 | 0.652±0.093 | 0.833±0.131 | 0.681±0.054 | 0.635±0.105 | 0.672±0.087 | 0.682±0.192 |
), ArticleFig(id=1322949772725858905, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=CN, label=表1, caption=
不同方法在不同诊断任务上的对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模态 | 方法 | AD vs. NC | AD vs. MCI |
|---|
| ACC | AUC | F1 | SPE | ACC | AUC | F1 | SPE |
|---|
| fMRI | BrainNetCNN | 0.700±0.045 | 0.615±0.090 | 0.337±0.105 | 0.932±0.061 | 0.653±0.070 | 0.666±0.099 | 0.235±0.083 | 0.925±0.066 |
| GAT | 0.668±0.031 | 0.610±0.094 | 0.097±0.071 | 0.909±0.073 | 0.631±0.076 | 0.535±0.062 | 0.381±0.118 | 0.757±0.148 |
| BrainGNN | 0.555±0.113 | 0.529±0.074 | 0.443±0.104 | 0.538±0.289 | 0.625±0.124 | 0.571±0.114 | 0.400±0.181 | 0.676±0.288 |
| HGNN+ | 0.669±0.092 | 0.629±0.097 | 0.316±0.083 | 0.890±0.027 | 0.647±0.030 | 0.627±0.058 | 0.223±0.101 | 0.899±0.067 |
| DTI | BrainNetCNN | 0.695±0.045 | 0.621±0.066 | 0.411±0.151 | 0.472±0.390 | 0.645±0.097 | 0.620±0.040 | 0.485±0.137 | 0.427±0.309 |
| GAT | 0.668±0.031 | 0.537±0.024 | 0.258±0.092 | 0.901±0.077 | 0.658±0.088 | 0.560±0.084 | 0.242±0.194 | 0.901±0.061 |
| BrainGNN | 0.528±0.157 | 0.532±0.115 | 0.457±0.049 | 0.472±0.390 | 0.536±0.164 | 0.517±0.135 | 0.346±0.286 | 0.400±0.490 |
| HGNN+ | 0.689±0.028 | 0.652±0.068 | 0.276±0.093 | 0.939±0.046 | 0.664±0.086 | 0.621±0.052 | 0.260±0.170 | 0.934±0.041 |
| 多模态 | MME-GCN | 0.658±0.052 | 0.643±0.040 | 0.492±0.075 | 0.740±0.082 | 0.615±0.089 | 0.599±0.130 | 0.381±0.169 | 0.735±0.128 |
| Cross-GNN | 0.699±0.046 | 0.659±0.043 | 0.431±0.064 | 0.878±0.093 | 0.654±0.060 | 0.667±0.143 | 0.401±0.129 | 0.893±0.066 |
| SFC-HGNN | 0.705±0.077 | 0.661±0.105 | 0.595±0.059 | 0.891±0.070 | 0.687±0.081 | 0.644±0.138 | 0.612±0.083 | 0.907±0.173 |
| 模态 | 方法 | MCI vs. NC | ASD vs. NC |
|---|
| ACC | AUC | F1 | SPE | ACC | AUC | F1 | SPE |
|---|
| fMRI | BrainNetCNN | 0.595±0.088 | 0.610±0.031 | 0.472±0.086 | 0.815±0.118 | 0.672±0.045 | 0.622±0.038 | 0.601±0.070 | 0.701±0.083 |
| GAT | 0.574±0.119 | 0.597±0.060 | 0.411±0.139 | 0.769±0.227 | 0.614±0.052 | 0.542±0.127 | 0.603±0.121 | 0.651±0.274 |
| BrainGNN | 0.538±0.073 | 0.518±0.064 | 0.587±0.100 | 0.301±0.277 | 0.653±0.086 | 0.581±0.089 | 0.612±0.101 | 0.671±0.189 |
| HGNN+ | 0.526±0.122 | 0.528±0.111 | 0.188±0.158 | 0.827±0.101 | 0.638±0.076 | 0.577±0.102 | 0.598±0.092 | 0.636±0.313 |
| DTI | BrainNetCNN | 0.607±0.123 | 0.613±0.088 | 0.481±0.167 | 0.822±0.111 | 0.640±0.055 | 0.612±0.042 | 0.588±0.085 | 0.684±0.123 |
| GAT | 0.522±0.114 | 0.540±0.051 | 0.393±0.120 | 0.819±0.179 | 0.625±0.051 | 0.554±0.072 | 0.582±0.111 | 0.621±0.264 |
| BrainGNN | 0.531±0.069 | 0.548±0.044 | 0.643±0.104 | 0.119±0.146 | 0.601±0.073 | 0.562±0.065 | 0.568±0.095 | 0.588±0.183 |
| HGNN+ | 0.522±0.008 | 0.532±0.092 | 0.380±0.243 | 0.798±0.102 | 0.628±0.065 | 0.599±0.056 | 0.574±0.099 | 0.651±0.251 |
| 多模态 | MME-GCN | 0.534±0.088 | 0.570±0.059 | 0.544±0.093 | 0.509±0.143 | 0.596±0.083 | 0.553±0.075 | 0.551±0.105 | 0.602±0.219 |
| Cross-GNN | 0.507±0.091 | 0.531±0.150 | 0.484±0.106 | 0.545±0.177 | 0.662±0.050 | 0.630±0.049 | 0.616±0.098 | 0.692±0.150 |
| SFC-HGNN | 0.631±0.053 | 0.623±0.065 | 0.652±0.093 | 0.833±0.131 | 0.681±0.054 | 0.635±0.105 | 0.672±0.087 | 0.682±0.192 |
), ArticleFig(id=1322949772809744986, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=EN, label=Table 2, caption=
Statistical significance of SFC-HGNN compared with Cross-GNN, figureFileSmall=null, figureFileBig=null, tableContent=
| 任务 | p-值 |
|---|
| AD vs. NC | 7.60E-3* |
| AD vs. MCI | 7.52E-6* |
| MCI vs. NC | 1.56E-2* |
| ASD vs. NC | 4.00E-5* |
), ArticleFig(id=1322949772910408283, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=CN, label=表2, caption=
SFC-HGNN相较于Cross-GNN的统计学显著性
, figureFileSmall=null, figureFileBig=null, tableContent=
| 任务 | p-值 |
|---|
| AD vs. NC | 7.60E-3* |
| AD vs. MCI | 7.52E-6* |
| MCI vs. NC | 1.56E-2* |
| ASD vs. NC | 4.00E-5* |
), ArticleFig(id=1322949773023654492, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=EN, label=Table 3, caption=
Ablation experiments on AD vs. NC and ASD vs. NC tasks, figureFileSmall=null, figureFileBig=null, tableContent=
| 预训练 | SFC引导 | AD vs. NC | ASD vs. NC |
|---|
| ACC | AUC | F1 | SPE | ACC | AUC | F1 | SPE |
|---|
| × | × | 0.668±0.068 | 0.534±0.109 | 0.394±0.077 | 0.887±0.011 | 0.629±0.058 | 0.566±0.121 | 0.598±0.092 | 0.588±0.179 |
| × | √ | 0.684±0.031 | 0.572±0.076 | 0.432±0.098 | 0.888±0.098 | 0.652±0.048 | 0.595±0.106 | 0.632±0.033 | 0.664±0.190 |
| √ | √ | 0.705±0.077 | 0.661±0.105 | 0.595±0.059 | 0.891±0.070 | 0.681±0.054 | 0.635±0.105 | 0.672±0.087 | 0.682±0.192 |
), ArticleFig(id=1322949773107540573, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=CN, label=表3, caption=
AD与NC、ASD与NC任务的消融实验
, figureFileSmall=null, figureFileBig=null, tableContent=
| 预训练 | SFC引导 | AD vs. NC | ASD vs. NC |
|---|
| ACC | AUC | F1 | SPE | ACC | AUC | F1 | SPE |
|---|
| × | × | 0.668±0.068 | 0.534±0.109 | 0.394±0.077 | 0.887±0.011 | 0.629±0.058 | 0.566±0.121 | 0.598±0.092 | 0.588±0.179 |
| × | √ | 0.684±0.031 | 0.572±0.076 | 0.432±0.098 | 0.888±0.098 | 0.652±0.048 | 0.595±0.106 | 0.632±0.033 | 0.664±0.190 |
| √ | √ | 0.705±0.077 | 0.661±0.105 | 0.595±0.059 | 0.891±0.070 | 0.681±0.054 | 0.635±0.105 | 0.672±0.087 | 0.682±0.192 |
), ArticleFig(id=1322949773195620958, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=EN, label=Table 4, caption=
Ablation experiments on using only a single modality and using multiple modalities, figureFileSmall=null, figureFileBig=null, tableContent=
| 模态 | AD vs. NC | ASD vs. NC |
|---|
| ACC | AUC | F1 | SPE | ACC | AUC | F1 | SPE |
|---|
| 仅fMRI | 0.688±0.081 | 0.602±0.127 | 0.514±0.096 | 0.878±0.086 | 0.635±0.061 | 0.594±0.109 | 0.614±0.079 | 0.629±0.215 |
| 仅DTI | 0.679±0.065 | 0.610±0.082 | 0.497±0.065 | 0.869±0.072 | 0.640±0.069 | 0.586±0.112 | 0.631±0.065 | 0.648±0.202 |
| 多模态 | 0.705±0.077 | 0.661±0.105 | 0.595±0.059 | 0.891±0.070 | 0.681±0.054 | 0.635±0.105 | 0.672±0.087 | 0.682±0.192 |
), ArticleFig(id=1322949773271118431, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=CN, label=表4, caption=
使用单一模态和使用多模态的消融实验
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模态 | AD vs. NC | ASD vs. NC |
|---|
| ACC | AUC | F1 | SPE | ACC | AUC | F1 | SPE |
|---|
| 仅fMRI | 0.688±0.081 | 0.602±0.127 | 0.514±0.096 | 0.878±0.086 | 0.635±0.061 | 0.594±0.109 | 0.614±0.079 | 0.629±0.215 |
| 仅DTI | 0.679±0.065 | 0.610±0.082 | 0.497±0.065 | 0.869±0.072 | 0.640±0.069 | 0.586±0.112 | 0.631±0.065 | 0.648±0.202 |
| 多模态 | 0.705±0.077 | 0.661±0.105 | 0.595±0.059 | 0.891±0.070 | 0.681±0.054 | 0.635±0.105 | 0.672±0.087 | 0.682±0.192 |
), ArticleFig(id=1322949773359198816, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=EN, label=Table 5, caption=
Model complexity of the proposed SFC-HGNN, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶段 | 参数量/M | FLOPs/M | GPU延迟/ ms | CPU延迟/ ms |
|---|
| 预训练 | 2.47 | 22.16 | 1.35 | 1.52 |
| 下游分类 | 2.75 | 23.04 | 1.29 | 1.36 |
), ArticleFig(id=1322949775015948897, tenantId=1146029695717560320, journalId=1249024232475115590, articleId=1322949764052038175, language=CN, label=表5, caption=
SFC-HGNN的模型复杂度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶段 | 参数量/M | FLOPs/M | GPU延迟/ ms | CPU延迟/ ms |
|---|
| 预训练 | 2.47 | 22.16 | 1.35 | 1.52 |
| 下游分类 | 2.75 | 23.04 | 1.29 | 1.36 |
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