• Real-time multislice-to-volume...

Treffer: Real-time multislice-to-volume motion correction for task-based EPI-fMRI at 7 T.

Title:
Real-time multislice-to-volume motion correction for task-based EPI-fMRI at 7 T.
Authors:
Winata S; Imaging Centre of Excellence, University of Glasgow, Queen Elizabeth University Hospital, 1345 Govan Road, Glasgow G51 4TF, Scotland, UK. Electronic address: steven.winata@glasgow.ac.uk., Hoinkiss DC; Fraunhofer Institute for Digital Medicine MEVIS, Max-von-Laue-Straße 2, 28359 Bremen, Germany., Keith GA; Imaging Centre of Excellence, University of Glasgow, Queen Elizabeth University Hospital, 1345 Govan Road, Glasgow G51 4TF, Scotland, UK., Al-Wasity S; Imaging Centre of Excellence, University of Glasgow, Queen Elizabeth University Hospital, 1345 Govan Road, Glasgow G51 4TF, Scotland, UK., Porter DA; Imaging Centre of Excellence, University of Glasgow, Queen Elizabeth University Hospital, 1345 Govan Road, Glasgow G51 4TF, Scotland, UK.
Source:
Magnetic resonance imaging [Magn Reson Imaging] 2026 Jan; Vol. 125, pp. 110554. Date of Electronic Publication: 2025 Oct 30.
Publication Type:
Journal Article
Language:
English
Journal Info:
Publisher: Elsevier Country of Publication: Netherlands NLM ID: 8214883 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-5894 (Electronic) Linking ISSN: 0730725X NLM ISO Abbreviation: Magn Reson Imaging Subsets: MEDLINE
Imprint Name(s):
Publication: <2008->: Amsterdam : Elsevier
Original Publication: New York : Pergamon, c1982-
MeSH Terms:
Echo-Planar Imaging*/methods , Artifacts* , Brain*/physiology , Brain Mapping*/methods , Image Processing, Computer-Assisted*/methods , Magnetic Resonance Imaging*/methods, Humans ; Algorithms ; Motion ; Male ; Female ; Adult ; Reproducibility of Results ; Computer Systems ; Sensitivity and Specificity ; Image Enhancement/methods
Contributed Indexing:
Keywords: Echo-planar imaging (EPI); Magnetic resonance imaging (MRI); Motion correction; Neuroimaging; Ultra-high field (UHF), 7 T (7 T)
Entry Date(s):
Date Created: 20251031 Date Completed: 20251122 Latest Revision: 20251124
Update Code:
20251124
DOI:
10.1016/j.mri.2025.110554
PMID:
41173218
Database:
MEDLINE

Weitere Informationen

Magnetic resonance imaging (MRI) at ultra-high field strengths such as 7 T unlocks new opportunities. Functional MRI (fMRI) is especially able to benefit due to the increase in the inherent blood‑oxygen-level-dependant (BOLD) signal. In order to utilise this, the higher motion sensitivity at 7 T and various motion sources in fMRI protocols, especially task-based ones, need to be mitigated. This motivated the development of a 7 T implementation of the real-time, prospective Multislice Prospective Acquisition Correction (MS-PACE) technique. MS-PACE allows for a sub-TR, higher temporal resolution motion correction without the need for external tracking equipment. We present an echo-planar imaging (EPI) implementation, evaluated in a 7 T task-based fMRI study. The results show that the technique led to significant, consistent reduction in residual motion across the scanned cohort. An analysis of the temporal SNR of the resting-state scans indicated a general increase in this metric when prospective motion correction was activated. Functional analysis of the data showed an apparent reduction of artefactual activations compared to a standard retrospective motion correction algorithm.
(Copyright © 2025 Elsevier Inc. All rights reserved.)

Declaration of competing interest SW is now an employee of Orbem GmbH, but the work presented here was completely conducted during the author's employment at the University of Glasgow. The other authors declared no potential conflicts of interest.