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Abstract #2500

Fast reconstruction of highly-undersampled dynamic MRI using random sampling and manifold interpolation

Kanwal K Bhatia 1 , Anthony N Price 2,3 , Joseph V Hajnal 2,3 , and Daniel Rueckert 1

1 Biomedical Image Analysis Group, Imperial College London, London, United Kingdom, 2 Centre for the Developing Brain, Kings College London, London, United Kingdom, 3 Biomedical Engineering Department, Kings College London, London, United Kingdom

This work describes an algorithm for fast dynamic MRI reconstruction based on random sampling and manifold-based interpolation. Results are demonstrated on both cardiac real-time and cardiac cine MRI, showing how the proposed algorithm performs at varying undersampling rates. The algorithm is fast, reconstructing 200 frames of real-time MRI in under 60 seconds, and can also be used as an initialisation to speed up convergence of more complex compressed sensing strategies.

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