Patent Document ID: 10107882
Application ID: 14895006
Patent Status: 1

Claim One:
1. A method of magnet resonance (MR) imaging of an object positioned in an examination volume of a MR device, the method comprising the steps of: acquiring reference MR signal data from the object using a multi-point Dixon technique and by way of two or more RF receiving coils having sensitivity maps that indicate their spatial sensitivity profiles; deriving a B 0 map from the reference MR signal data; deriving a multi-point Dixon water map and a multi-point Dixon fat map from the reference MR signal data; correcting the sensitivity maps according to the B 0 map for geometric distortions of the sensitivity maps; acquiring imaging MR signal data from the object via the one or more receiving coils with sub-sampling of k-space; reconstructing a MR image from the imaging MR signal data, wherein sub-sampling artefacts are eliminated using the corrected sensitivity maps, wherein the correction of the sensitivity maps includes computation of separate corrected sensitivity maps associated with signals from water and from fat, respectively and the reconstruction of the MR image is performed by way of a regularised SENSE reconstruction scheme which employs the corrected sensitivity maps to simultaneously unfold a separate water image and a fat image and the regularisation employs as a regularisation map the multi-point Dixon water map and the multi-point Dixon fat map derived from the reference MR signal data.