Show simple item record

Authordc.contributor.authorCarrillo, Hugo 
Authordc.contributor.authorOsses, Axel 
Authordc.contributor.authorUribe, Sergio 
Authordc.contributor.authorBertoglio, Cristobal 
Admission datedc.date.accessioned2019-10-11T17:31:26Z
Available datedc.date.available2019-10-11T17:31:26Z
Publication datedc.date.issued2019
Cita de ítemdc.identifier.citationIEEE Transactions on Medical Imaging, Volumen 38, Issue 5, 2019, Pages 1263-1270
Identifierdc.identifier.issn1558254X
Identifierdc.identifier.issn02780062
Identifierdc.identifier.other10.1109/TMI.2018.2882553
Identifierdc.identifier.urihttp://repositorio.uchile.cl/handle/2250/171376
Abstractdc.description.abstract© 2018 IEEE. Dual-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- A nd dual-VENC problems, 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.
Lenguagedc.language.isoen
Publisherdc.publisherInstitute of Electrical and Electronics Engineers Inc.
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
Sourcedc.sourceIEEE Transactions on Medical Imaging
Keywordsdc.subjectdual-VENC
Keywordsdc.subjectPhase-contrast MRI
Keywordsdc.subjectunwrapping
Títulodc.titleOptimal Dual-VENC Unwrapping in Phase-Contrast MRI
Document typedc.typeArtículo de revista
Catalogueruchile.catalogadorSCOPUS
Indexationuchile.indexArtículo de publicación SCOPUS
uchile.cosechauchile.cosechaSI


Files in this item

Icon

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile