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dc.contributor.advisor Clark, John W., Jr.
dc.creatorRambow, Olen
dc.date.accessioned 2013-09-16T16:35:13Z
dc.date.accessioned 2013-09-16T16:35:16Z
dc.date.available 2013-09-16T16:35:13Z
dc.date.available 2013-09-16T16:35:16Z
dc.date.created 2013-05
dc.date.issued 2013-09-16
dc.date.submitted May 2013
dc.identifier.citation Rambow, Olen. "Direct Water and Fat Determination in Two-Point Dixon Imaging." (2013) Master’s Thesis, Rice University. https://hdl.handle.net/1911/72028.
dc.identifier.urihttps://hdl.handle.net/1911/72028
dc.description.abstract The Dixon technique is a well-established method in magnetic resonance imaging for obtaining separate images of water and fat. Here we present a generalized solution to the two-point Dixon problem with a geometric interpretation, allowing for flexible echo times and a multi-peak fat model. By simulation and experiment, we have analyzed the dependence on the echo times of the error in the water, fat, and relative background phasor values due to both signal noise and T2* decay. Furthermore, we have demonstrated that broken symmetry due to the multi-peak nature of fat enables direct water and fat determination without phase correction, and we have quantified the reliability of this technique as a function of the echo times. The results may provide valuable guidance for selecting scan parameters to balance the objectives of optimizing fat-water identification, minimizing error in the pixel values, and minimizing total scan time.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectMagnetic resonance imaging (MRI)
Dixon imaging
Multipeak fat model
Fat and water imaging
Dual echo
Flexible echo times
Medical imaging
dc.title Direct Water and Fat Determination in Two-Point Dixon Imaging
dc.contributor.committeeMember Ma, Jingfei
dc.contributor.committeeMember Killian, Thomas C.
dc.contributor.committeeMember Kelly, Kevin F.
dc.date.updated 2013-09-16T16:35:16Z
dc.identifier.slug 123456789/ETD-2013-05-498
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Applied Physics
thesis.degree.discipline Natural Sciences
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Science


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