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© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Numerous methods in the extensive literature on magnetic resonance imaging (MRI) reconstruction exploit temporal redundancy to accelerate cardiac cine. Some of them include motion compensation, which involves high computational costs and long runtimes. In this work, we proposed a method—elastic alignedSENSE (EAS)—for the direct reconstruction of a motion-free image plus a set of nonrigid deformations to reconstruct a 2D cardiac sequence. The feasibility of the proposed approach was tested in 2D Cartesian and golden radial multi-coil breath-hold cardiac cine acquisitions. The proposed approach was compared against parallel imaging compressed sense (sPICS) and group-wise motion corrected compressed sense (GWCS) reconstructions. EAS provides better results on objective measures with considerable less runtime when an acceleration factor is higher than 10×. Subjective assessment of an expert, however, invited proposing the combination of EAS and GWCS as a preferable alternative to GWCS or EAS in isolation.

Details

Title
Elastic AlignedSENSE for Dynamic MR Reconstruction: A Proof of Concept in Cardiac Cine
Author
Godino-Moya, Alejandro 1   VIAFID ORCID Logo  ; Rosa-María Menchón-Lara 1   VIAFID ORCID Logo  ; Martín-Fernández, Marcos 1   VIAFID ORCID Logo  ; Prieto, Claudia 2   VIAFID ORCID Logo  ; Alberola-López, Carlos 1   VIAFID ORCID Logo 

 Laboratorio de Procesado de Imagen, E.T.S.I. Telecomunicación, Universidad de Valladolid, Paseo Belén 15, 47011 Valladolid, Spain; [email protected] (R.-M.M.-L.); [email protected] (M.M.-F.); [email protected] (C.A.-L.) 
 School of Biomedical Engineering and Imaging Sciences, King’s College London, London SE1 7EH, UK; [email protected]; School of Engineering, Pontificia Universidad Catolica de Chile, Santiago 4860, Chile 
First page
555
Publication year
2021
Publication date
2021
Publisher
MDPI AG
e-ISSN
10994300
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2532342678
Copyright
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.