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Author | dc.contributor.author | Carrillo, Hugo | |
Author | dc.contributor.author | Osses, Axel | |
Author | dc.contributor.author | Uribe, Sergio | |
Author | dc.contributor.author | Bertoglio, Cristobal | |
Admission date | dc.date.accessioned | 2019-10-11T17:31:26Z | |
Available date | dc.date.available | 2019-10-11T17:31:26Z | |
Publication date | dc.date.issued | 2019 | |
Cita de ítem | dc.identifier.citation | IEEE Transactions on Medical Imaging, Volumen 38, Issue 5, 2019, Pages 1263-1270 | |
Identifier | dc.identifier.issn | 1558254X | |
Identifier | dc.identifier.issn | 02780062 | |
Identifier | dc.identifier.other | 10.1109/TMI.2018.2882553 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/171376 | |
Abstract | dc.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. | |
Lenguage | dc.language.iso | en | |
Publisher | dc.publisher | Institute of Electrical and Electronics Engineers Inc. | |
Type of license | dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
Link to License | dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
Source | dc.source | IEEE Transactions on Medical Imaging | |
Keywords | dc.subject | dual-VENC | |
Keywords | dc.subject | Phase-contrast MRI | |
Keywords | dc.subject | unwrapping | |
Título | dc.title | Optimal Dual-VENC Unwrapping in Phase-Contrast MRI | |
Document type | dc.type | Artículo de revista | |
dcterms.accessRights | dcterms.accessRights | Acceso Abierto | |
Cataloguer | uchile.catalogador | SCOPUS | |
Indexation | uchile.index | Artículo de publicación SCOPUS | |
uchile.cosecha | uchile.cosecha | SI | |
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