Three-dimensional motion corrected sensitivity encoding reconstruction for multi-shot multi-slice MRI: Application to neonatal brain imaging

Cordero-Grande L, Hughes EJ, Hutter J, Price AN, Hajnal JV (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Magnetic Resonance in Medicine Wiley

Book Volume: 79

Pages Range: 1365-1376

Journal Issue: 3

DOI: 10.1002/mrm.26796

Abstract

Purpose: To introduce a methodology for the reconstruction of multi-shot, multi-slice magnetic resonance imaging able to cope with both within-plane and through-plane rigid motion and to describe its application in structural brain imaging. Theory and Methods: The method alternates between motion estimation and reconstruction using a common objective function for both. Estimates of three-dimensional motion states for each shot and slice are gradually refined by improving on the fit of current reconstructions to the partial k-space information from multiple coils. Overlapped slices and super-resolution allow recovery of through-plane motion and outlier rejection discards artifacted shots. The method is applied to T2 and T1 brain scans acquired in different views. Results: The procedure has greatly diminished artifacts in a database of 1883 neonatal image volumes, as assessed by image quality metrics and visual inspection. Examples showing the ability to correct for motion and robustness against damaged shots are provided. Combination of motion corrected reconstructions for different views has shown further artifact suppression and resolution recovery. Conclusion: The proposed method addresses the problem of rigid motion in multi-shot multi-slice anatomical brain scans. Tests on a large collection of potentially corrupted datasets have shown a remarkable image quality improvement. Magn Reson Med 79:1365–1376, 2018. © 2017 The Authors Magnetic Resonance in Medicine published by Wiley Periodicals, Inc. on behalf of International Society for Magnetic Resonance in Medicine. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Authors with CRIS profile

Jana Hutter

Involved external institutions

King’s College London GB United Kingdom (GB)

How to cite

APA:

Cordero-Grande, L., Hughes, E.J., Hutter, J., Price, A.N., & Hajnal, J.V. (2018). Three-dimensional motion corrected sensitivity encoding reconstruction for multi-shot multi-slice MRI: Application to neonatal brain imaging. Magnetic Resonance in Medicine, 79(3), 1365-1376. https://doi.org/10.1002/mrm.26796

MLA:

Cordero-Grande, Lucilio, et al. "Three-dimensional motion corrected sensitivity encoding reconstruction for multi-shot multi-slice MRI: Application to neonatal brain imaging." Magnetic Resonance in Medicine 79.3 (2018): 1365-1376.

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