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Abstract #3414

Intra-Frame Motion Correction in Dynamic Radial MRI Using the Phase Correlation Method

Ghislain Vaillant1, Claudia Prieto, Christoph Kolbitsch, Graeme Penney, Tobias Schaeffter

1Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom

Motion is a dramatic factor of image quality degradation in MRI. Dynamic MR can be used for limiting the effect of motion during the acquisition. We propose to combine a conventional sliding window reconstruction with a Fourier-based registration technique in order to correct for rigid motion in highly segmented radial acquisitions. The proposed method has been compared to image-based registration and was successfully applied in-vivo on 6 volunteers for 2D brain imaging.