An Efficient Lightweight Network Based on Magnetic Resonance Images for Predicting Alzheimer's Disease

• Published in: International journal on semantic web and information systems Vol. 18; no. 1; pp. 1 - 18
• Main Authors: Ji, Boan, Wang, Huabin, Zhang, Mengxin, Mao, Borun, Li, Xuejun
• Format: Journal Article
• Language: English
• Published: Hershey IGI Global 01.01.2022
• Subjects: Advertising executives; Alzheimer's disease; Computational linguistics; Language processing; Magnetic resonance imaging; Medical research; Medicine, Experimental; Natural language interfaces; China
• ISSN: 1552-6283; 1552-6291
• DOI: 10.4018/IJSWIS.313715

Brain magnetic resonance images (MRI) are widely used for the classification of Alzheimer's disease (AD). The size of 3D images is, however, too large. Some of the sliced image features are lost, which results in conflicting network size and classification performance. This article uses key components in the transformer model to propose a new lightweight method, ensuring the lightness of the network and achieving highly accurate classification. First, the transformer model is imitated by using image patch input to enhance feature perception. Second, the Gaussian error linear unit (GELU), commonly used in transformer models, is used to enhance the generalization ability of the network. Finally, the network uses MRI slices as learning data. The depthwise separable convolution makes the network more lightweight. Experiments are carried out on the ADNI public database. The accuracy rate of AD vs. normal control (NC) experiments reaches 98.54%. The amount of network parameters is 1.3% of existing similar networks.