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A General Method for Correction of Intensity Inhomogeniety in Two Point Dixon Imaging
MeVis Research, Bremen, Germany.
Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.ORCID iD: 0000-0001-8661-2232
Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-9267-2191
2008 (English)In: Proceedings of the International Society for Magnetic Resonance in Medicine annual meeting (ISMRM'08), International Society for Magnetic Resonance in Medicine , 2008, 4637Conference paper, Published paper (Other academic)
Abstract [en]

Two point Dixon imaging can be used for quantitative fat estimation. However, field inhomogeneities pose a problem that needs to be corrected for before quantitative measurements can be obtained. We present a general framework for field inhomogeneitiy correction by fitting a set of smooth 3D spatial basis functions to voxels with high fat content. By choosing the number of basis functions, the smoothness constraint of the field can be controlled. The method is evaluated by measuring the FWHM of the fat peak in histograms for different number of basis functions. It is also compared to a previous method with good results.

Place, publisher, year, edition, pages
International Society for Magnetic Resonance in Medicine , 2008. 4637
Series
International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition. Proceedings, ISSN 1524-6965, E-ISSN 1545-4428 ; vol. 16
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-43050Local ID: 71165OAI: oai:DiVA.org:liu-43050DiVA: diva2:263907
Conference
16th Scientic meeting and exhibition (ISMRM 2008), 3-9 May 2008, Toronto, Ontario, Canada
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-04-05

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Dahlqvist Leinhard, OlofLundberg, PeterBorga, Magnus

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Dahlqvist Leinhard, OlofLundberg, PeterBorga, Magnus
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Center for Medical Image Science and Visualization (CMIV)Radiation PhysicsFaculty of Health SciencesDepartment of Radiation PhysicsMedical InformaticsThe Institute of Technology
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