Journal Article

DZNE-2026-00848

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Prospective Head Motion Correction in T1- and T2-Weighted Long Echo Train Sequences Using Servo Navigation.

Serger, M. (First author)DZNE* ; Riedel, M. ; Stirnberg, R.DZNE* ; Ulrich, T. ; Boulant, N. ; Pruessmann, K. P. ; Stöcker, T.DZNE* ; Ehses, P. (Last author)DZNE*

2026
Wiley-Liss New York, NY [u.a.]

This record in other databases:    

Please use a persistent id in citations: doi:10.1002/mrm.70479

Abstract: To integrate MR-based servo navigation in MPRAGE and 3D-TSE sequences and demonstrate its potential for prospective head motion correction in structural imaging.Repeated modules of servo navigators were inserted before each preparation pulse of MPRAGE and 3D-TSE sequences (before-prep) for rapid convergence of motion parameter estimation. Additionally, reference navigators were distributed along the imaging echo train to test a within-echo train correction (within-ET) with contrast-matched models, enabling more frequent geometry updates. The methods were evaluated in instructed motion experiments and in high-resolution scans at 7T.Artifacts caused by instructed abrupt motion were clearly reduced in scans with servo navigation for both sequences using the before-prep correction. Residual artifacts of rapid in-train motion were further mitigated by the within-ET correction in MPRAGE. In high-resolution scans with minimal motion, servo navigation preserved fine anatomical details, while it improved image quality under involuntary motion in long acquisitions.Servo navigation provides accurate real-time head motion correction for structural brain imaging.

Keyword(s): Humans (MeSH) ; Artifacts (MeSH) ; Head Movements: physiology (MeSH) ; Image Enhancement: methods (MeSH) ; Brain: diagnostic imaging (MeSH) ; Brain: anatomy & histology (MeSH) ; Imaging, Three-Dimensional: methods (MeSH) ; Magnetic Resonance Imaging: methods (MeSH) ; Reproducibility of Results (MeSH) ; Sensitivity and Specificity (MeSH) ; Algorithms (MeSH) ; Image Interpretation, Computer-Assisted: methods (MeSH) ; Motion (MeSH) ; MPRAGE ; SPACE ; high‐resolution ; prospective motion correction ; servo navigation

---

Contributing Institute(s):

1. MR Physics (AG Stöcker)

Research Program(s):

1. 354 - Disease Prevention and Healthy Aging (POF4-354) (POF4-354)

---

Database coverage:
; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Clinical Medicine ; Current Contents - Life Sciences ; DEAL Wiley ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---