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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  
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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  
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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