Jonathan Andersson1, Filip Malmberg1, Håkan Ahlström1, and Joel Kullberg1
When reconstructing chemical shift encoded water-fat
images so called water-fat swaps due to incorrect phase maps can be a
significant problem, limiting clinical assessment and quantitative
measurements. A method is presented for solving the problem in the case of 3
echoes, assuming only a fix intra-echo spacing. Two possible solutions are analytically
calculated for each voxel. The correct global solution is then found using a
graph-cut method. The method succeeds where a region-growing reference method
fails at low SNR. The presented method runs quickly and uses only one parameter
that can be set automatically, which should allow for online implementation.
