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Abstract #2702

Dixon BSSFP in the Presence of Bo Inhomogeneities

Michel Louis Lauzon1,2, Randall Brooke Stafford2,3, Mohammad Sabati4, Richard Frayne1,2

1Radiology, University of Calgary, Calgary, AB, Canada; 2Seaman Family MR Research Centre, Foothills Medical Centre, Calgary Health Region, Calgary, AB, Canada; 3Physics and Astronomy, University of Calgary, Calgary, AB, Canada; 4Radiology, University of Miami, Miami, FL, USA

The two-point, fat/water-separation Dixon method for balanced steady-state free precession introduced by Huang et al shows great promise for non contrast-enhanced MRA applications. Here, we investigate its limitations in the presence of Bo inhomogeneities (i.e., from magnet non-uniformity, susceptibility, etc.), and for pixels containing a mixture of fat and water. From the analysis, we propose acquiring and using a Bo inhomogeneity map to better suppress fat and produce more robust water-only images.