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Abstract #3791

Recovering high quality FODs from reduced number of diffusion weighted images using a model-driven deep learning architecture

Joseph Bartlett1,2,3, Catherine Davey1,2, Leigh Johnston1,2, and Jinming Duan3,4
1Department of Biomedical Engineering, University of Melbourne, Melbourne, Australia, 2Melbourne Brain Centre Imaging Unit, University of Melbourne, Melbourne, Australia, 3School of Computer Science, University of Birmingham, Birmingham, United Kingdom, 4Alan Turing Institute, London, United Kingdom

Synopsis

Keywords: Machine Learning/Artificial Intelligence, Diffusion/other diffusion imaging techniquesSDNet utilises the learning ability of deep neural networks with the robustness of model-based approaches to produce high quality fibre orientation distributions (FODs) from a reduced set of multi-shell diffusion weighted images (DWI). The cascaded architecture, with data consistency layers throughout, makes use of model based prior knowledge and spatial correlations within the DWI signal to achieve state-of-the-art performance in both sum of squared errors and angular correlation coefficient. Our model also shows competitive results with respect to apparent fibre density error and peak amplitude error over a range of regions of interest.

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Keywords