Home > In process > Motion- and Field-Robust Mesoscopic Whole-Brain T 2 * $$ {T}_2^{\ast } $$ -Weighted Imaging at 7 and 11.7 T Using Servo Navigation. > print

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024 7 _ |a 10.1002/mrm.70251
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024 7 _ |a 0740-3194
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037 _ _ |a DZNE-2026-00250
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Serger, Matthias
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245 _ _ |a Motion- and Field-Robust Mesoscopic Whole-Brain T 2 * $$ {T}_2^{\ast } $$ -Weighted Imaging at 7 and 11.7 T Using Servo Navigation.
260 _ _ |a New York, NY [u.a.]
|c 2026
|b Wiley-Liss
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520 _ _ |a To mitigate artifacts related to motion and field changes in high-resolution T 2 * $$ {T}_2^{\ast } $$ -weighted human brain imaging using servo navigation at ultra-high fields up to 11.7 T.MR-based servo navigators were integrated into a segmented 3D-EPI sequence to allow for prospective correction of involuntary head motion and first-order shim changes. Seven subjects were scanned with whole-brain protocols at 0.3 mm isotropic resolution with and without correction at 7 and 11.7 T. Validation was performed on detailed brain vasculature in scans with involuntary motion.Blurring of small veins was reduced by servo navigation for all subjects and across field strengths. In case of involuntary large motion, the method preserved image quality, while uncorrected motion led to severe artifacts. In case of microscopic motion, reduced blurring and shading in the frontal lobe demonstrate the additional benefit of prospective field drift correction.Servo-navigated segmented 3D-EPI improves 0.3 mm isotropic whole-brain T 2 * $$ {T}_2^{\ast } $$ -weighted imaging under realistic motion and field changes within 5.5 to 11 min scan time at 11.7 and 7 T.
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650 _ 7 |a 11.7 T
|2 Other
650 _ 7 |a 3D‐EPI
|2 Other
650 _ 7 |a brain vasculature
|2 Other
650 _ 7 |a mesoscopic imaging
|2 Other
650 _ 7 |a prospective motion correction
|2 Other
650 _ 7 |a servo navigation
|2 Other
650 _ 2 |a Humans
|2 MeSH
650 _ 2 |a Brain: diagnostic imaging
|2 MeSH
650 _ 2 |a Artifacts
|2 MeSH
650 _ 2 |a Imaging, Three-Dimensional: methods
|2 MeSH
650 _ 2 |a Motion
|2 MeSH
650 _ 2 |a Male
|2 MeSH
650 _ 2 |a Adult
|2 MeSH
650 _ 2 |a Female
|2 MeSH
650 _ 2 |a Echo-Planar Imaging: methods
|2 MeSH
650 _ 2 |a Algorithms
|2 MeSH
650 _ 2 |a Image Processing, Computer-Assisted: methods
|2 MeSH
650 _ 2 |a Magnetic Resonance Imaging: methods
|2 MeSH
650 _ 2 |a Reproducibility of Results
|2 MeSH
700 1 _ |a Stirnberg, Rüdiger
|0 P:(DE-2719)2810697
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700 1 _ |a Ehses, Philipp
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700 1 _ |a Riedel, Malte
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700 1 _ |a Ulrich, Thomas
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700 1 _ |a Le Ster, Caroline
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700 1 _ |a Mauconduit, Franck
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700 1 _ |a Gras, Vincent
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700 1 _ |a Amadon, Alexis
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700 1 _ |a Vignaud, Alexandre
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700 1 _ |a Chu, Son
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700 1 _ |a Gunamony, Shajan
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700 1 _ |a Zaitsev, Maxim
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700 1 _ |a Boulant, Nicolas
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700 1 _ |a Pruessmann, Klaas P
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700 1 _ |a Stoecker, Tony
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773 _ _ |a 10.1002/mrm.70251
|g Vol. 95, no. 5, p. 2658 - 2670
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