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Abstract #4746

Improving Across-Dataset Schizophrenia Classification with Structural Brain MRI Using Multi-scale Transformer

Ye Tian1, Junhao Zhang2, Vish Mitnala Rao1, and Jia Guo3
1Biomedical Engineering, Columbia University, New York, NY, United States, 2BME, Columbia University, New York, NY, United States, 3Department of Psychiatry, Columbia University, New York, NY, United States

Synopsis

Keywords: Machine Learning/Artificial Intelligence, Brain, Deep LearningSchizophrenia is a neurological disorder that requires accurate and rapid detection for earlier intervention. Previous explorations in artificial intelligence showed overwhelming performance using deep learning in schizophrenia classification, though the generalization remained a challenge. We propose our 3D Multi-scale Transformer (MST) using T1W structural MRI data to detect schizophrenia. By synthesizing reconstructed images at different scales, the transformer-based architecture improves robustness to generalize in unseen data. The proposed method reaches the same-level performance of AUROC to the benchmark mark model in schizophrenia identification, and performs better in all leave-one-site-out generality tests.

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