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dc.contributor.author
Craiem, Damian
dc.contributor.author
Pascaner, Ariel Fernando
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Casciaro, Mariano Ezequiel
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Gencer, Umit
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Alcibar, Joaquin
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Soulat, Gilles
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Mousseaux, Elie
dc.date.available
2020-12-29T19:43:02Z
dc.date.issued
2019-12
dc.identifier.citation
Craiem, Damian; Pascaner, Ariel Fernando; Casciaro, Mariano Ezequiel; Gencer, Umit; Alcibar, Joaquin; et al.; Automatic correction of background phase offset in 4D-flow of great vessels and of the heart in MRI using a third-order surface model; Springer; Magnetic Resonance Materials In Physics Biology And Medicine; 32; 6; 12-2019; 629-642
dc.identifier.issn
0968-5243
dc.identifier.uri
http://hdl.handle.net/11336/121320
dc.description.abstract
Objective: To evaluate an automatic correction method for velocity offset errors in cardiac 4D-flow acquisitions. Materials and methods: Velocity offset correction was done in a plane-by-plane scheme and compared to a volumetric approach. Stationary regions were automatically detected. In vitro experiments were conducted in a phantom using two orientations and two encoding velocities (Venc). First- to third-order models were fit to the time-averaged images of the three velocity components. In vivo experiments included realistic ROIs in a volunteer superimposed to a phantom. In 15 volunteers, blood flow volume of the proximal and distal descending aorta, of the pulmonary artery (Qp) and the ascending aorta (Qs) was compared. Results: Offset errors were reduced after correction with a third-order model, yielding residual phantom velocities below 0.6 cm/s and 0.4% of Venc. The plane-by-plane correction method was more effective than the volumetric approach. Mean velocities through superimposed ROIs of a volunteer vs phantom were highly correlated (r2 = 0.96). The significant difference between proximal and distal descending aortic flows was decreased after correction from 8.1 to − 1.4 ml (p < 0.001) and Qp/Qs reduced from 1.08 ± 0.09 to 1.01 ± 0.05. Discussion: An automatic third-order model corrected velocity offset errors in 4D-flow acquisitions, achieving acceptable levels for clinical applications.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BLOOD FLOW
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EDDY CURRENTS
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PHASE-CONTRAST MRI
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VELOCITY OFFSET ERROR
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Ingeniería Médica
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Ingeniería Médica
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Automatic correction of background phase offset in 4D-flow of great vessels and of the heart in MRI using a third-order surface model
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-12-11T14:56:33Z
dc.journal.volume
32
dc.journal.number
6
dc.journal.pagination
629-642
dc.journal.pais
Alemania
dc.journal.ciudad
Berlín
dc.description.fil
Fil: Craiem, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Medicina Traslacional, Trasplante y Bioingeniería. Fundación Favaloro. Instituto de Medicina Traslacional, Trasplante y Bioingeniería; Argentina
dc.description.fil
Fil: Pascaner, Ariel Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Medicina Traslacional, Trasplante y Bioingeniería. Fundación Favaloro. Instituto de Medicina Traslacional, Trasplante y Bioingeniería; Argentina
dc.description.fil
Fil: Casciaro, Mariano Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Medicina Traslacional, Trasplante y Bioingeniería. Fundación Favaloro. Instituto de Medicina Traslacional, Trasplante y Bioingeniería; Argentina
dc.description.fil
Fil: Gencer, Umit. Hopital Europeen Georges Pompidou; Francia. Institut National de la Santé et de la Recherche Médicale; Francia
dc.description.fil
Fil: Alcibar, Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Medicina Traslacional, Trasplante y Bioingeniería. Fundación Favaloro. Instituto de Medicina Traslacional, Trasplante y Bioingeniería; Argentina
dc.description.fil
Fil: Soulat, Gilles. Hopital Europeen Georges Pompidou; Francia. Institut National de la Santé et de la Recherche Médicale; Francia
dc.description.fil
Fil: Mousseaux, Elie. Hopital Europeen Georges Pompidou; Francia. Institut National de la Santé et de la Recherche Médicale; Francia
dc.journal.title
Magnetic Resonance Materials In Physics Biology And Medicine
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10334-019-00765-z
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1007/s10334-019-00765-z
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