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Abstract #0349

Generalizable and Accurate Federated learning for Fast MR imaging Equipped with Laplacian Attention Mechanism

Ruoyou Wu1,2,3, Cheng Li1, Juan Zou1,4, Hairong Zheng5, and Shanshan Wang1,2
1Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China, 2Peng Cheng Laboratory, Shenzhen, China, 3University of Chinese Academy of Sciences, Beijing, China, 4School of Physics and Optoelectronics, Xiangtan University, Xiangtan, China, 5Chinese Academy of Sciences, Shenzhen, China

Synopsis

Keywords: AI/ML Image Reconstruction, Machine Learning/Artificial Intelligence

Motivation: Federated MR image reconstruction can make full use of data from multiple institutions while protecting patient privacy, but the images obtained by existing methods still need improvement in terms of fine structures.

Goal(s): Our goal is to improve the quality of clinical diagnosis by achieving accurate MR image reconstruction.

Approach: A Laplacian attention mechanism is proposed to capture fine structure and details for accurate MR image reconstruction from undersampled data.

Results: Qualitative and quantitative experimental results on an in-house and two public datasets validate the effectiveness of our method.

Impact: Federated MR image reconstruction promotes collaboration across multiple institutions and effectively leverages data from different organizations to enhance model performance, while mitigating privacy concerns.

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