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Abstract #2221

Federated image-to-image MRI translation from heterogeneous multiple-sites data

Jan Stanisław Fiszer1,2, Dominika Ciupek1, Maciej Malawski1,2, and Tomasz Pieciak1,3
1Sano Centre for Computational Medicine, Kraków, Poland, 2AGH University of Science and Technology, Kraków, Poland, 3Laboratorio de Procesado de Imagen (LPI), ETSI Telecomunicación, Universidad de Valladolid, Valladolid, Spain

Synopsis

Keywords: AI/ML Image Reconstruction, Machine Learning/Artificial Intelligence, Federated Learning, Image-to-image Translation

Motivation: Applying machine learning (ML) in MRI necessitates the development of large and diverse datasets, which is a challenging process. Federated learning (FL) is a new frontier in ML that offers the possibility of multi-site data aggregation.

Goal(s): In our study, we examine a traditional deep convolutional neural network applied to multiple sources with that of the FL technique using different aggregation methods.

Approach: As a proof-of-concept, we employ four publicly available MRI datasets and carry out image-to-image translation between T1- and T2-weighted scans.

Results: Our findings suggest that the FL generalizes the model more effectively than using models trained at each site separately.

Impact: Our research demonstrated the crucial role of federated learning in medical imaging. It also emphasized the significance of selecting an appropriate aggregation algorithm considering the data type and degree of heterogeneity.

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Keywords