Fast three-dimensional k-space trajectory design using missile guidance ideas

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dc.contributor.authorMir, R
dc.contributor.authorGuesalaga, A
dc.contributor.authorSpiniak, J
dc.contributor.authorGuarini, M
dc.contributor.authorIrarrazaval, P
dc.date.accessioned2024-01-10T13:13:02Z
dc.date.available2024-01-10T13:13:02Z
dc.date.issued2004
dc.description.abstractThree-dimensional (3D) k-space trajectories are needed to acquire volumetric images in MRI. While scan time is determined by the trajectory efficiency, image quality and distortions depend on the shape of the trajectories. There are several 3D trajectory strategies for sampling the k-space using rectilinear or curve schemes. Since there is no evidence about their optimality in terms of image quality and acquisition time, a new design method based on missile guidance ideas is explored. Since air-to-air missile guidance shares similar goals and constraints with the problem of k-space trajectory design, a control approach for missiles is used to design a 3D trajectory. The k-space is divided into small cubes, and each one is treated as a target to be sampled. The main goal is to cover the entire space as quickly and efficiently as possible, with good performance under different conditions. This novel design method is compared to other trajectories using simulated and real data. As an example, a trajectory that requires 0.11 times the number of shots needed by the cylindrical 3DFT acquisition was designed. This trajectory requires more shots (1.66 times) than the stack of spirals, but behaves better under nonideal conditions, such as off-resonance and motion. (C) 2004 Wiley-Liss, Inc.
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1002/mrm.20163
dc.identifier.eissn1522-2594
dc.identifier.issn0740-3194
dc.identifier.pubmedidMEDLINE:15282815
dc.identifier.urihttps://doi.org/10.1002/mrm.20163
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78260
dc.identifier.wosidWOS:000223121400013
dc.information.autorucIngeniería;Guarini M;S/I;99643
dc.information.autorucIngeniería;Guesalaga A;S/I;63871
dc.information.autorucIngeniería;Irarrázaval P;S/I;57376
dc.issue.numero2
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final336
dc.pagina.inicio329
dc.publisherWILEY
dc.revistaMAGNETIC RESONANCE IN MEDICINE
dc.rightsregistro bibliográfico
dc.subjectMRI
dc.subjectk-space
dc.subjectmissile guidance
dc.subject3D trajectory design
dc.subjectfast imaging
dc.subjectMRI
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleFast three-dimensional k-space trajectory design using missile guidance ideas
dc.typeartículo
dc.volumen52
sipa.codpersvinculados99643
sipa.codpersvinculados63871
sipa.codpersvinculados57376
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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