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Functional mri analysis for computer aided diagnosis of mental diseases / Ali Hamid Muthanna Algumaei ; Supervised Ayman M. Eldeib , Inas A. Yassine , Muhammad A. Rushdi

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Ali Hamid Muthanna Algumaei , 2018Description: 72 P. : charts , facsimiles ; 25cmOther title:
  • تحليل صور الرنين المغناطيسي الوظيفي لتشخيص الأمراض العقلية بمساعدة الحاسوب [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Systems and Biomedical Engineering Summary: Mental disorders, especially schizophrenia, are still challenging to diagnose in early phases. Nowadays, computer-aided diagnosis techniques based on Resting-state functional Magnetic Resonance Imaging (Rs-fMRI) have been growingly developed to tackle this challenge. In this study, we investigate different combinations of features computed for each brain region in order to discriminate the schizophrenic from normal subjects.The set of features include the Regional Homogeneity (ReHo), Voxel-Mirrored Homotopic Connectivity (VMHC), fractional Amplitude of Low-Frequency Fluctuations (fALFF) and Amplitude of Low-Frequency Fluctuations (ALFF). Data denoising and preprocessing were first applied, followed by the feature extraction module.The extracted features were then reduced using the Principal Component Analysis (PCA) transformation, and the best discriminative features were selected using different feature selection algorithms such as the Fisher score and t-test methods. A Support Vector Machine (SVM) classifier was trained and tested on the COBRE dataset formed of 70 schizophrenic and 70 healthy subjects.The highest average classification accuracy of 98.57% has been achieved
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.03.M.Sc.2018.Al.F (Browse shelf(Opens below)) Not for loan 01010110076967000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.03.M.Sc.2018.Al.F (Browse shelf(Opens below)) 76967.CD Not for loan 01020110076967000

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Systems and Biomedical Engineering

Mental disorders, especially schizophrenia, are still challenging to diagnose in early phases. Nowadays, computer-aided diagnosis techniques based on Resting-state functional Magnetic Resonance Imaging (Rs-fMRI) have been growingly developed to tackle this challenge. In this study, we investigate different combinations of features computed for each brain region in order to discriminate the schizophrenic from normal subjects.The set of features include the Regional Homogeneity (ReHo), Voxel-Mirrored Homotopic Connectivity (VMHC), fractional Amplitude of Low-Frequency Fluctuations (fALFF) and Amplitude of Low-Frequency Fluctuations (ALFF). Data denoising and preprocessing were first applied, followed by the feature extraction module.The extracted features were then reduced using the Principal Component Analysis (PCA) transformation, and the best discriminative features were selected using different feature selection algorithms such as the Fisher score and t-test methods. A Support Vector Machine (SVM) classifier was trained and tested on the COBRE dataset formed of 70 schizophrenic and 70 healthy subjects.The highest average classification accuracy of 98.57% has been achieved

Issued also as CD

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