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Resolution recovery in Turbo Spin Echo using segmented Half Fourier acquisition.

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dc.contributor.authorLafuente, Javier
dc.contributor.authorVaquero, Juan José
dc.contributor.authorGarcia Barreno, Pedro
dc.contributor.authorDesco, Manuel
dc.contributor.authorSanta Marta Pastrana, Cristina María
dc.date.accessioned2024-05-20T11:28:35Z
dc.date.available2024-05-20T11:28:35Z
dc.date.issued2004-04
dc.description.abstractTurbo Spin Echo (TSE) is a sequence of choice for obtaining T2-weighted images. TSE reduces acquisition time by acquiring several echoes within each TR, at the cost of introducing an exponential weighting in the k-space that leads to a certain image blurring. This is particularly important for short-T2 structures, which can even disappear if their size in the phase encoding direction is comparable to the degree of blurring. This article suggests the use of a combination of Half Fourier (HF) and segmented (multishot) TSE (sHF-TSE) to recover the original resolution of the SE images. The improved symmetry of the dataset achieved by HF reconstruction is used to increase the resolution of the TSE images. The proposed combination, available in most clinical scanners, reduces the blurring artifact inherent to the TSE sequence without increasing the scan time or the number of acquisitions, but at the cost of a slight reduction of the signal-to-noise ratios (SNR). Qualitative and quantitative results are presented using both numerical simulation and imaging. Significant edge enhancement has been achieved for structures with short T2, (narrowing of the full width at half maximum [FWHM] up to 45%). The proposed sequence is more sensitive to movement artifacts but has proven to be superior to the conventional TSE for imaging static structures.en
dc.description.versionversión final
dc.identifier.doi10.1016/J.MRI.2004.01.009
dc.identifier.issn1873-5894
dc.identifier.urihttps://hdl.handle.net/20.500.14468/12067
dc.journal.issue3
dc.journal.titleMagnetic Resonance Imaging
dc.journal.volume22
dc.language.isoen
dc.publisherElsevier
dc.relation.centerFacultad de Ciencias
dc.relation.departmentFísica Matemática y de Fluídos
dc.rightsAtribución-NoComercial-SinDerivadas 4.0 Internacional
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subject.keywordsTSE
dc.subject.keywordsFSE
dc.subject.keywordsResolution
dc.subject.keywordsSNR
dc.subject.keywordsk-Space
dc.titleResolution recovery in Turbo Spin Echo using segmented Half Fourier acquisition.es
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
relation.isAuthorOfPublication3d74eb47-9db3-41ef-83e7-f7bdb91dde8c
relation.isAuthorOfPublication.latestForDiscovery3d74eb47-9db3-41ef-83e7-f7bdb91dde8c
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