Article (Scientific journals)
Restoring statistical validity in group analyses of motion-corrupted MRI data
Lutti, Antoine; Corbin, Nadège; Ashburner, John et al.
2022In Human Brain Mapping
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Keywords :
Neurimaging; MRI; motion; statistics; quantitative
Abstract :
[en] Motion during the acquisition of magnetic resonance imaging (MRI) data degrades image quality, hindering our capacity to characterise disease in patient populations. Quality control procedures allow the exclusion of the most affected images from analysis. However, the criterion for exclusion is difficult to determine objectively and exclusion can lead to a suboptimal compromise between image quality and sample size. We provide an alternative, data-driven solution that assigns weights to each image, computed from an index of image quality using restricted maximum likelihood. We illustrate this method through the analysis of quantitative MRI data. The proposed method restores the validity of statistical tests, and performs near optimally in all brain regions, despite local effects of head motion. This method is amenable to the analysis of a broad type of MRI data and can accommodate any measure of image quality.
Disciplines :
Neurology
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Lutti, Antoine
Corbin, Nadège
Ashburner, John
Ziegler, Gabriel
Draganski, Bogdan
Phillips, Christophe  ;  Université de Liège - ULiège > GIGA CRC In vivo Im. - Neuroimaging, data acquisi. & proces.
Kherif, Ferath
Callaghan, Martina F.
Di Domenicantonio, Giulia
Language :
English
Title :
Restoring statistical validity in group analyses of motion-corrupted MRI data
Publication date :
February 2022
Journal title :
Human Brain Mapping
ISSN :
1065-9471
eISSN :
1097-0193
Publisher :
John Wiley & Sons, Hoboken, United States - New York
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 February 2022

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