Flow properties of fast three-dimensional sequences for MR angiography

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dc.contributor.authorIrarrazaval, P
dc.contributor.authorSantos, JM
dc.contributor.authorGuarini, M
dc.contributor.authorNishimura, D
dc.date.accessioned2024-01-10T13:44:19Z
dc.date.available2024-01-10T13:44:19Z
dc.date.issued1999
dc.description.abstractTo reduce the scan time of time of flight or phase contrast angiography sequences, fast three-dimensional k-space trajectories can be employed. The best 3D trajectory depends on tolerable scan time, readout time, geometric flexibility, flow/motion properties and others, A formalism for flow/motion sensitivity comparison based on the velocity k-space behavior is presented. It consists in finding the velocity k-space position as a function of the spatial k-space position. The trajectories are compared graphically by their velocity k-space maps, with simulations and with an objective computed index. The flow/motion properties of various 3D trajectories (cones, spiral-pr hybrid, spherical stack of spirals, 3DFT, 3D echo-planar, and shells) were determined. In terms of flow/motion sensitivity the cones trajectory is the best, however, it is difficult to use it for anisotropic resolutions or fields of view. Tolerating more flow sensitivity, the stack of spirals trajectory offers more geometric flexibility. (C) 1999 Elsevier Science Inc.
dc.fechaingreso.objetodigital2024-04-11
dc.format.extent11 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/S0730-725X(99)00083-1
dc.identifier.issn0730-725X
dc.identifier.pubmedidMEDLINE:10609995
dc.identifier.urihttps://doi.org/10.1016/S0730-725X(99)00083-1
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78891
dc.identifier.wosidWOS:000084082200007
dc.information.autorucFacultad de Ingeniería; Irarrazaval Mena, Pablo; S/I; 57376
dc.issue.numero10
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final1479
dc.pagina.inicio1469
dc.publisherELSEVIER SCIENCE INC
dc.revistaMAGNETIC RESONANCE IMAGING
dc.rightsacceso restringido
dc.subjectangiography
dc.subjectvelocity k-space
dc.subjectmagnetic resonance angiography
dc.subjectMAGNETIC-RESONANCE ANGIOGRAPHY
dc.subjectPULSE
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleFlow properties of fast three-dimensional sequences for MR angiography
dc.typeartículo
dc.volumen17
sipa.codpersvinculados57376
sipa.indexWOS
sipa.indexPubmed
sipa.trazabilidadCarga SIPA;09-01-2024
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