Reduction of B0 inhomogeneity effects in triple-quantum-filtered sodium imaging
Triple-quantum (TQ) filtered sodium MR imaging has been proposed for separation of sodium signal arising from different physiological compartments. In a three-pulse sequence without refocussing pulse, the TQ signal is strongly sensitive to inhomogeneities of the B0 field. We examine the dependence o...
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| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2010
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| In: |
Journal of magnetic resonance
Year: 2010, Jahrgang: 202, Heft: 2, Pages: 239-244 |
| ISSN: | 1096-0856 |
| DOI: | 10.1016/j.jmr.2009.11.004 |
| Online-Zugang: | Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.jmr.2009.11.004 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S1090780709003255 
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| Verfasserangaben: | Christian Matthies, Armin M. Nagel, Lothar R. Schad, Peter Bachert |
MARC
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| 520 | |a Triple-quantum (TQ) filtered sodium MR imaging has been proposed for separation of sodium signal arising from different physiological compartments. In a three-pulse sequence without refocussing pulse, the TQ signal is strongly sensitive to inhomogeneities of the B0 field. We examine the dependence of the TQ signal intensity on the sequence parameters and propose a modified phase-cycling scheme to improve image quality. A new method for correction of B0 inhomogeneity artefacts in TQ filtered sodium imaging is presented which requires only two acquisitions to obtain a correction as far as the B0 inhomogeneity and the pulse widths are not too large. The method was verified in phantom experiments. | ||
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