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@ARTICLE{Kan:279035,
author = {Kan, Chung and Stirnberg, Rüdiger and Montequin, Marcela
and Gulban, Omer Faruk and Morgan, A Tyler and Bandettini,
Peter A and Huber, Laurentius},
title = {{T}1234: {A} distortion-matched structural scan solution to
misregistration of high resolution f{MRI} data.},
journal = {Magnetic resonance in medicine},
volume = {94},
number = {2},
issn = {1522-2594},
address = {New York, NY [u.a.]},
publisher = {Wiley-Liss},
reportid = {DZNE-2025-00667},
pages = {713 - 723},
year = {2025},
abstract = {Registration of functional and structural data poses a
challenge for high-resolution fMRI studies at 7 T. This
study aims to develop a rapid acquisition method that
provides distortion-matched, artifact-mitigated structural
reference data.We introduce an efficient sequence protocol
termed T1234, which offers adjustable distortions. This
includes data that match distortions of functional data and
data that are free of distortions. This approach involves a
T1-weighted 2-inversion 3D-EPI sequence with four
combinations of read and phase encoding directions optimized
for high-resolution fMRI. A forward Bloch model was used for
T1 quantification and protocol optimization. Fifteen
participants were scanned at 7 T using both structural and
functional protocols to evaluate the use of T1234.Results
from two protocols are presented. A fast distortion-free
protocol reliably produced whole-brain segmentations at 0.8
mm isotropic resolution within 3:00-3:40 min. It
demonstrates robustness across sessions, participants, and
three different 7 T SIEMENS scanners. For a protocol with
geometric distortions that matched functional data, T1234
facilitates layer-specific fMRI signal analysis with
enhanced laminar precision.This structural mapping approach
enables precise registration with fMRI data. T1234 has been
successfully implemented, validated, and tested, and is now
available to users at our center and at over 50 centers
worldwide.},
keywords = {Humans / Magnetic Resonance Imaging: methods / Brain:
diagnostic imaging / Artifacts / Adult / Algorithms / Male /
Image Processing, Computer-Assisted: methods / Female /
Imaging, Three-Dimensional: methods / Brain Mapping: methods
/ Reproducibility of Results / Young Adult / Echo-Planar
Imaging / 7 T acquisition (Other) / T1 mapping (Other) /
distortion (Other) / layer‐fMRI (Other)},
cin = {AG Stöcker},
ddc = {610},
cid = {I:(DE-2719)1013026},
pnm = {354 - Disease Prevention and Healthy Aging (POF4-354)},
pid = {G:(DE-HGF)POF4-354},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40079433},
doi = {10.1002/mrm.30480},
url = {https://pub.dzne.de/record/279035},
}