An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging
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 reflec...
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/50939/ |
| _version_ | 1848798372858691584 |
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| author | Andersson, Jesper L.R. Sotiropoulos, Stamatios N. |
| author_facet | Andersson, Jesper L.R. Sotiropoulos, Stamatios N. |
| author_sort | Andersson, Jesper L.R. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T20:18:44Z |
| format | Article |
| id | nottingham-50939 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:18:44Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-509392020-05-04T17:31:47Z https://eprints.nottingham.ac.uk/50939/ An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging Andersson, Jesper L.R. Sotiropoulos, Stamatios N. 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. Elsevier 2016-01-15 Article PeerReviewed Andersson, Jesper L.R. and Sotiropoulos, Stamatios N. (2016) An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging. NeuroImage, 125 . pp. 1063-1078. ISSN 1053-8119 Diffusion; Eddy current; Movement; Susceptibility; Registration https://www.sciencedirect.com/science/article/pii/S1053811915009209 doi:10.1016/j.neuroimage.2015.10.019 doi:10.1016/j.neuroimage.2015.10.019 |
| spellingShingle | Diffusion; Eddy current; Movement; Susceptibility; Registration Andersson, Jesper L.R. Sotiropoulos, Stamatios N. An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging |
| title | An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging |
| title_full | An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging |
| title_fullStr | An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging |
| title_full_unstemmed | An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging |
| title_short | An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging |
| title_sort | integrated approach to correction for off-resonance effects and subject movement in diffusion mr imaging |
| topic | Diffusion; Eddy current; Movement; Susceptibility; Registration |
| url | https://eprints.nottingham.ac.uk/50939/ https://eprints.nottingham.ac.uk/50939/ https://eprints.nottingham.ac.uk/50939/ |