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Article

Elastic AlignedSENSE for Dynamic MR Reconstruction: A Proof of Concept in Cardiac Cine

1
Laboratorio de Procesado de Imagen, E.T.S.I. Telecomunicación, Universidad de Valladolid, Paseo Belén 15, 47011 Valladolid, Spain
2
School of Biomedical Engineering and Imaging Sciences, King’s College London, London SE1 7EH, UK
3
School of Engineering, Pontificia Universidad Catolica de Chile, Santiago 4860, Chile
*
Author to whom correspondence should be addressed.
Academic Editor: Osvaldo Anibal Rosso
Entropy 2021, 23(5), 555; https://doi.org/10.3390/e23050555
Received: 29 March 2021 / Revised: 26 April 2021 / Accepted: 27 April 2021 / Published: 29 April 2021
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. View Full-Text
Keywords: non-rigid registration; elastic motion non-rigid registration; elastic motion
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MDPI and ACS Style

Godino-Moya, A.; Menchón-Lara, R.-M.; Martín-Fernández, M.; Prieto, C.; Alberola-López, C. Elastic AlignedSENSE for Dynamic MR Reconstruction: A Proof of Concept in Cardiac Cine. Entropy 2021, 23, 555. https://doi.org/10.3390/e23050555

AMA Style

Godino-Moya A, Menchón-Lara R-M, Martín-Fernández M, Prieto C, Alberola-López C. Elastic AlignedSENSE for Dynamic MR Reconstruction: A Proof of Concept in Cardiac Cine. Entropy. 2021; 23(5):555. https://doi.org/10.3390/e23050555

Chicago/Turabian Style

Godino-Moya, Alejandro, Rosa-María Menchón-Lara, Marcos Martín-Fernández, Claudia Prieto, and Carlos Alberola-López. 2021. "Elastic AlignedSENSE for Dynamic MR Reconstruction: A Proof of Concept in Cardiac Cine" Entropy 23, no. 5: 555. https://doi.org/10.3390/e23050555

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