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Abstract #2410

2D-SENSE-GRAPPA For Fast, Ghosting-Robust Reconstruction of In-Plane and Slice Accelerated Blipped-CAIPI-EPI

Peter Jan Koopmans 1 , Benedikt A Poser 2 , and Felix A Breuer 3

1 FMRIB Centre, University of Oxford, Oxford, United Kingdom, 2 Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, Netherlands, 3 Research Center Magnetic Resonance Bavaria, Wurzburg, Germany

2D-SENSE-GRAPPA is presented as a method to reconstruct in-plane accelerated simultaneous multislice data in a single step rather than sequentially unaliasing each dimension. Following a recent adaptation of Sice-GRAPPA by Setsompop et al, the method uses different kernels for the odd and even lines of k-space to ensure robustness against EPI N/2 ghosting. Reconstruction quality is very similar to Sice-GRAPPA but owing to its one-step approach, 2D-SENSE-GRAPPA has the potential to reduce calculation times which are becoming a problem in fMRI and DTI.

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