{"id":"doi:10.1016/j.neuroimage.2015.10.019","kind":"article","title":"An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging","authors":["Andersson JLR","Sotiropoulos SN"],"author_count":2,"year":2016,"published":"2015-10-20","venue":"NeuroImage","cited_by":3382,"doi":"10.1016/j.neuroimage.2015.10.019","arxiv_id":null,"nct_id":null,"source_url":"https://doi.org/10.1016/j.neuroimage.2015.10.019","archive_url":"https://space-kitty.com/papers/doi:10.1016/j.neuroimage.2015.10.019","updated":null,"pmid":"26481672","pmcid":"PMC4692656","openalex_id":null,"pdf_url":"https://europepmc.org/articles/PMC4692656/pdf","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 3T Siemens Verio, a 3T Siemens Connectome Skyra or a 7T 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.","abstract_license":"CC-BY (article license as recorded by Europe PMC; abstract reproduced unmodified apart from markup removal)","license":"CC-BY","is_open_access":true,"retracted":false,"peer_reviewed":null,"categories":[],"details":null,"provenance":"europepmc","attribution":"Abstract of \"An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging\" by Andersson JLR, Sotiropoulos SN, https://doi.org/10.1016/j.neuroimage.2015.10.019, used under its Creative Commons Attribution license (CC-BY); markup removed, otherwise unmodified.","topics":[{"slug":"connectomics","name":"Connectomics & Brain Mapping","domain_slug":"neuroscience"}],"cited_in_dossiers":[]}