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Spiral water–fat imaging with integrated off‐resonance correction on a clinical scanner
Author(s) -
Börnert Peter,
Koken Peter,
Eggers Holger
Publication year - 2010
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.22336
Subject(s) - scanner , spiral (railway) , magnetic resonance imaging , image quality , sampling (signal processing) , computer science , nuclear medicine , radiology , biomedical engineering , medicine , artificial intelligence , computer vision , mathematics , image (mathematics) , mathematical analysis , filter (signal processing)
Purpose To integrate water‐fat–resolved spiral gradient‐echo imaging with off‐resonance correction into a clinical MR scanner and to evaluate its basic feasibility and performance. Materials and Methods Three‐point chemical shift imaging was implemented with forward and strongly T 2 *‐weighted reverse spiral sampling and with off‐resonance correction after water–fat separation. It was applied in a volunteer study on single breathhold abdominal imaging, which included a brief comparison with Cartesian sampling. Results Water‐fat–resolved, off‐resonance–corrected forward and reverse three‐dimensional interleaved spiral imaging was found to be feasible on a clinical MR scanner with only minor changes to the existing data acquisition and reconstruction, and to provide good image quality. Three‐point chemical shift encoded data thus support both, water–fat separation and off‐resonance correction with high accuracy. Conclusion The combination of chemical shift encoding and appropriate postprocessing could pave the way for water‐fat–resolved spiral imaging in clinical applications. J. Magn. Reson. Imaging 2010;32:1262–1267. © 2010 Wiley‐Liss, Inc.