Three-dimensional water/fat separation and T2* estimation based on whole-image optimization--application in breathhold liver imaging at 1.5 T - PubMed (original) (raw)
. 2012 Jun;67(6):1684-93.
doi: 10.1002/mrm.23185. Epub 2011 Dec 21.
Affiliations
- PMID: 22189760
- DOI: 10.1002/mrm.23185
Free article
Three-dimensional water/fat separation and T2* estimation based on whole-image optimization--application in breathhold liver imaging at 1.5 T
Johan Berglund et al. Magn Reson Med. 2012 Jun.
Free article
Abstract
The chemical shift of water and fat resonances in proton MRI allows separation of water and fat signal from chemical shift encoded data. This work describes an automatic method that produces separate water and fat images as well as quantitative maps of fat signal fraction and T2* from complex multiecho gradient-recalled datasets. Accurate water and fat separation is challenging due to signal ambiguity at the voxel level. Whole-image optimization can resolve this ambiguity, but might be computationally demanding, especially for three-dimensional data. In this work, periodicity of the model fit residual as a function of the off-resonance was used to modify a previously proposed formulation of the problem. This gives a smaller solution space and allows rapid optimization. Feasibility and accurate separation of water and fat signal were demonstrated in breathhold three-dimensional liver imaging of 10 volunteer subjects, with both acquisition and reconstruction times below 20 s.
Copyright © 2011 Wiley Periodicals, Inc.
Similar articles
- Two-point dixon method with flexible echo times.
Berglund J, Ahlström H, Johansson L, Kullberg J. Berglund J, et al. Magn Reson Med. 2011 Apr;65(4):994-1004. doi: 10.1002/mrm.22679. Epub 2010 Nov 16. Magn Reson Med. 2011. PMID: 21413063 - Magnetic resonance imaging based determination of body compartments with the versatile, interactive sparse sampling (VISS) method.
Buehler T, Ramseier N, Machann J, Schwenzer NF, Boesch C. Buehler T, et al. J Magn Reson Imaging. 2012 Oct;36(4):951-60. doi: 10.1002/jmri.23707. Epub 2012 May 29. J Magn Reson Imaging. 2012. PMID: 22645058 - Chemical shift encoding-based water-fat separation methods.
Eggers H, Börnert P. Eggers H, et al. J Magn Reson Imaging. 2014 Aug;40(2):251-68. doi: 10.1002/jmri.24568. Epub 2014 Jan 21. J Magn Reson Imaging. 2014. PMID: 24446249 Review. - Whole-body simultaneous positron emission tomography (PET)-MR: optimization and adaptation of MRI sequences.
Fowler KJ, McConathy J, Narra VR. Fowler KJ, et al. J Magn Reson Imaging. 2014 Feb;39(2):259-68. doi: 10.1002/jmri.24308. Epub 2013 Oct 29. J Magn Reson Imaging. 2014. PMID: 24436150 Review.
Cited by
- QSM Throughout the Body.
Dimov AV, Li J, Nguyen TD, Roberts AG, Spincemaille P, Straub S, Zun Z, Prince MR, Wang Y. Dimov AV, et al. J Magn Reson Imaging. 2023 Jun;57(6):1621-1640. doi: 10.1002/jmri.28624. Epub 2023 Feb 7. J Magn Reson Imaging. 2023. PMID: 36748806 Free PMC article. Review. - Incorporating dixon multi-echo fat water separation for novel quantitative magnetization transfer of the human optic nerve in vivo.
Smith AK, Dortch RD, Dethrage LM, Lyttle BD, Kang H, Welch EB, Smith SA. Smith AK, et al. Magn Reson Med. 2017 Feb;77(2):707-716. doi: 10.1002/mrm.26164. Epub 2016 Apr 1. Magn Reson Med. 2017. PMID: 27037720 Free PMC article. - Free-breathing volumetric fat/water separation by combining radial sampling, compressed sensing, and parallel imaging.
Benkert T, Feng L, Sodickson DK, Chandarana H, Block KT. Benkert T, et al. Magn Reson Med. 2017 Aug;78(2):565-576. doi: 10.1002/mrm.26392. Epub 2016 Sep 9. Magn Reson Med. 2017. PMID: 27612300 Free PMC article. - Dual echo Dixon imaging with a constrained phase signal model and graph cuts reconstruction.
Stinson EG, Trzasko JD, Fletcher JG, Riederer SJ. Stinson EG, et al. Magn Reson Med. 2017 Dec;78(6):2203-2215. doi: 10.1002/mrm.26620. Epub 2017 Feb 2. Magn Reson Med. 2017. PMID: 28150873 Free PMC article. - Serum Ferritin Correlates With Liver Fat in Male Adolescents With Obesity.
Mörwald K, Aigner E, Bergsten P, Brunner SM, Forslund A, Kullberg J, Ahlström H, Manell H, Roomp K, Schütz S, Zsoldos F, Renner W, Furthner D, Maruszczak K, Zandanell S, Weghuber D, Mangge H. Mörwald K, et al. Front Endocrinol (Lausanne). 2020 Jun 18;11:340. doi: 10.3389/fendo.2020.00340. eCollection 2020. Front Endocrinol (Lausanne). 2020. PMID: 32625166 Free PMC article.
MeSH terms
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical