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Classification of schizophrenia patients using a graph convolutional network: A combined functional MRI and connectomics analysis

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单位: [1]South China Univ Technol, Sch Biomed Sci & Engn, Guangzhou Int Campus, Guangzhou 511442, Peoples R China [2]South China Univ Technol, Sch Mat Sci & Engn, Dept Biomed Engn, Guangzhou 510006, Peoples R China [3]Guangdong Engn Technol Res Ctr Diag & Rehabil Deme, Guangzhou 510500, Peoples R China [4]Guangzhou Med Univ, Affiliated Brain Hosp, Guangzhou 510370, Peoples R China [5]Guangdong Engn Technol Res Ctr Translat Med Mental, Guangzhou 510370, Peoples R China [6]China Japan Friendship Hosp, Dept Radiol, Beijing 100029, Peoples R China [7]South China Univ Technol, Natl Engn Res Ctr Tissue Restorat & Reconstruct, Guangzhou 510006, Peoples R China [8]South China Univ Technol, Guangdong Prov Key Lab Biomed Engn, Guangzhou 510006, Peoples R China [9]South China Univ Technol, Key Lab Biomed Mat & Engn, Minist Educ, Guangzhou 510006, Peoples R China [10]Guangdong Second Prov Gen Hosp, Inst Healthcare Artificial Intelligence Applicat, Guangzhou 510317, Guangdong, Peoples R China [11]Tohoku Univ, Inst Dev Aging & Canc, Dept Nucl Med & Radiol, Sendai 9808575, Japan
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关键词: Schizophrenia Brain connectivity Graph convolutional network Classification

摘要:
Recent studies in human brain connectomics have widely reported brain connectivity abnormalities associated with schizophrenia. However, most previous discriminative studies of SZ patients using machine learning methods were based on MRI features of brain regions, ignoring brain connectivity and its network topology. We addressed these limitations by applying a graph convolutional network (GCN) to classify schizophrenia patients with brain region and connectivity features derived from a combined functional MRI and connectomics analysis. In this study, 140 schizophrenia patients and 205 normal controls were included, and resting-state functional magnetic resonance imaging (rs-fMRI) data were acquired for each subject. Brain region features, including the amplitude of low-frequency fluctuation (ALFF), regional homogeneity (ReHo), and degree centrality (DC), were computed by MRI analysis and connectomics analysis, respectively. Moreover, brain connectivity features were explored by connectomics analysis. A GCN method was proposed to learn network representations to discrimi-nate patients with schizophrenia from normal controls. Compared with the traditional machine learning and deep learning methods based on MRI features of brain regions, the proposed method based on a combined functional MRI and connectomics analysis can effectively improve classification performance. Specifically, we obtained an average accuracy of 92.47%, and the area under the curve (AUC), sensitivity, specificity, precision and F1-score reached 95.36%, 88.70%, 95.06%, 92.87%, and 90.45%, respectively. These findings indicated that GCN based on brain connectivity and network topology is a promising method to improve the classification performance of schizophrenia patients.

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出版当年[2022]版:
大类 | 2 区 工程技术
小类 | 3 区 工程:生物医学
最新[2025]版:
大类 | 2 区 医学
小类 | 3 区 工程:生物医学
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出版当年[2021]版:
Q2 ENGINEERING, BIOMEDICAL
最新[2023]版:
Q1 ENGINEERING, BIOMEDICAL

影响因子: 最新[2023版] 最新五年平均[2021-2025] 出版当年[2021版] 出版当年五年平均[2017-2021] 出版前一年[2020版] 出版后一年[2022版]

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第一作者单位: [1]South China Univ Technol, Sch Biomed Sci & Engn, Guangzhou Int Campus, Guangzhou 511442, Peoples R China
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通讯机构: [1]South China Univ Technol, Sch Biomed Sci & Engn, Guangzhou Int Campus, Guangzhou 511442, Peoples R China [4]Guangzhou Med Univ, Affiliated Brain Hosp, Guangzhou 510370, Peoples R China [5]Guangdong Engn Technol Res Ctr Translat Med Mental, Guangzhou 510370, Peoples R China [7]South China Univ Technol, Natl Engn Res Ctr Tissue Restorat & Reconstruct, Guangzhou 510006, Peoples R China [8]South China Univ Technol, Guangdong Prov Key Lab Biomed Engn, Guangzhou 510006, Peoples R China [9]South China Univ Technol, Key Lab Biomed Mat & Engn, Minist Educ, Guangzhou 510006, Peoples R China [10]Guangdong Second Prov Gen Hosp, Inst Healthcare Artificial Intelligence Applicat, Guangzhou 510317, Guangdong, Peoples R China [11]Tohoku Univ, Inst Dev Aging & Canc, Dept Nucl Med & Radiol, Sendai 9808575, Japan [*1]School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, China
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