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An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging

Andersson, Jesper L.R.; Sotiropoulos, Stamatios N.

Authors

Jesper L.R. Andersson

Stamatios N. Sotiropoulos



Abstract

In this paper we describe a method for retrospective estimation and correction of eddy current (EC)-induced distortions and subject movement in diffusion imaging. In addition a susceptibility-induced field can be supplied and will be incorporated into the calculations in a way that accurately reflects that the two fields (susceptibility- and EC-induced) behave differently in the presence of subject movement. The method is based on registering the individual volumes to a model free prediction of what each volume should look like, thereby enabling its use on high b-value data where the contrast is vastly different in different volumes. In addition we show that the linear EC-model commonly used is insufficient for the data used in the present paper (high spatial and angular resolution data acquired with Stejskal–Tanner gradients on a 3 T Siemens Verio, a 3 T Siemens Connectome Skyra or a 7 T Siemens Magnetome scanner) and that a higher order model performs significantly better.

The method is already in extensive practical use and is used by four major projects (the WU-UMinn HCP, the MGH HCP, the UK Biobank and the Whitehall studies) to correct for distortions and subject movement.

Citation

Andersson, J. L., & Sotiropoulos, S. N. (2016). An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging. NeuroImage, 125, https://doi.org/10.1016/j.neuroimage.2015.10.019

Journal Article Type Article
Acceptance Date Oct 9, 2015
Online Publication Date Oct 20, 2015
Publication Date Jan 15, 2016
Deposit Date Apr 5, 2018
Publicly Available Date Apr 5, 2018
Journal NeuroImage
Print ISSN 1053-8119
Electronic ISSN 1053-8119
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 125
DOI https://doi.org/10.1016/j.neuroimage.2015.10.019
Keywords Diffusion; Eddy current; Movement; Susceptibility; Registration
Public URL http://eprints.nottingham.ac.uk/id/eprint/50939
Publisher URL https://www.sciencedirect.com/science/article/pii/S1053811915009209
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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