Multiple-Region Affine Motion Correction using Localized Coil Sensitivities

Ghislain Vaillant¹, Christian Buerger¹, Graeme Penney¹, Claudia Prieto¹, Tobias Schaeffter¹

Respiratory motion compensation is still a major challenge in cardiac and abdominal MRI. We propose the use of multiple affine motion correction in regions selected by localized coil sensitivities of a 32-channel coil array. The approach was validated in simulations by investigating the influence of the registration and the selectivity of the coil elements on the image quality. The feasibility was tested in-vivo on a healthy volunteer. Multiple region-affine motion compensation reduces artefacts in the reconstructed image in comparison to the non-corrected and a global affine correction scheme.