Optimal Dual-VENC Unwrapping in Phase-Contrast MRI

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dc.contributor.authorCarrillo, Hugo
dc.contributor.authorOsses, Axel
dc.contributor.authorUribe, Sergio
dc.contributor.authorBertoglio, Cristobal
dc.date.accessioned2025-01-23T21:14:35Z
dc.date.available2025-01-23T21:14:35Z
dc.date.issued2019
dc.description.abstractDual-VENC strategies have been proposed to improve the velocity-to-noise ratio in phase-contrast MRI. However, they are based on aliasing-free high-VENC data. The aim of this paper is to propose a dual-VENC velocity estimation method allowing high-VENC aliased data. For this purpose, we reformulate the phase-contrast velocity as a least squares estimator, providing a natural framework for including multiple encoding gradient measurements. By analyzing the mathematical properties of both single-and dual-VENCproblems, we can justify theoretically high/low-VENC ratios such that the aliasing velocity can be minimized. The resulting reconstruction algorithm was assessed using three types of data: numerical, experimental, and volunteers. In clinical practice, this method would allow shorter examination times by avoiding tedious adaptation of VENC values by repeated scans.
dc.fuente.origenWOS
dc.identifier.doi10.1109/TMI.2018.2882553
dc.identifier.eissn1558-254X
dc.identifier.issn0278-0062
dc.identifier.urihttps://doi.org/10.1109/TMI.2018.2882553
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101048
dc.identifier.wosidWOS:000466914700016
dc.issue.numero5
dc.language.isoen
dc.pagina.final1270
dc.pagina.inicio1263
dc.revistaIeee transactions on medical imaging
dc.rightsacceso restringido
dc.subjectPhase-contrast MRI
dc.subjectdual-VENC
dc.subjectunwrapping
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleOptimal Dual-VENC Unwrapping in Phase-Contrast MRI
dc.typeartículo
dc.volumen38
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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