title: Artifacts in CSI-measurements caused by the drift of the static magnetic field.
abstract: In chemical shift resolved spectroscopic imaging (CSI) temporal changes in the static magnetic field (drift) can lead to distortions of the phase encoding process. This can result in localization artifacts. The extent of the artifact depends on the size of the drift, the number of acquisitions, as well as on the combination of the size of the field of view and the number of phase encoding gradient steps. Furthermore, it is affected by the succession of the phase encoding gradients. Precautions are described which allow substantial minimization of the artifact.
authors.affiliation: Physikalisches Institut, University of Tübingen, Germany.
authors.forename: O
authors.initials: O
authors.lastname: Schmidt
authors.forename: S
authors.initials: S
authors.lastname: Widmaier
authors.forename: M
authors.initials: M
authors.lastname: Bunse
authors.forename: W I
authors.initials: WI
authors.lastname: Jung
authors.forename: G J
authors.initials: GJ
authors.lastname: Dietze
authors.forename: O
authors.initials: O
authors.lastname: Lutz
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008280:Magnetics; D009206:Myocardium / Q000378:metabolism; D019047:Phantoms, Imaging; D010758:Phosphorus
chemical_list: D010758:Phosphorus