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Abstract #1647

Investigating Altered Brain Functional Network in Alzheimer’s Disease Using a Joint Framework of Graph Theoretical Analysis and Machine Learning

Chen-Pei Lin1, Shih-Yen Lin1,2, Chia-Wen Chiang1, Kuan-Hung Cho1, Chien-Yuan Lin3,4, and Li-Wei Kuo1,5

1Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli, Taiwan, 2Department of Computer Science, National Chiao Tung University, Hsinchu, Taiwan, 3GE Healthcare, Taiwan, 4GE Healthcare MR Research China, Beijing, People's Republic of China, 5Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taiwan

The progressive decline in cognitive abilities occurred in the early stage of Alzheimer’s disease (AD) is often difficult to be distinguished from the symptoms of mild cognitive impairment (MCI). This study incorporated graph theoretical analysis and machine learning approach to investigate the alterations of brain functional network in AD. Statistical approach demonstrated regions with significantly altered network characteristics, which were also reported to be linked to AD in previous studies. Machine learning approach using TensorFlow also showcases the significant discriminative power of the brain network measures. Future work includes incorporation of other type of network measures, behavior and biochemical assessments, and more complex deep learning models.

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