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@ARTICLE{Goa:283104,
author = {Goa, Pal Erik and Blömer, Simon and Stirnberg, Rüdiger
and Stöcker, Tony},
title = {{B}rain {P}ulsation {I}maging {U}sing {N}on-{B}alanced
{S}teady-{S}tate {F}ree {P}recession {W}ith 3{D}-{EPI}
{R}eadout.},
journal = {Magnetic resonance in medicine},
volume = {95},
number = {3},
issn = {1522-2594},
address = {New York, NY [u.a.]},
publisher = {Wiley-Liss},
reportid = {DZNE-2025-01511},
pages = {1606 - 1618},
year = {2026},
abstract = {To present a new, fast MR imaging method for visualization
and quantification of pulsatile displacement in brain tissue
and fluid.The natural phase-contrast of non-balanced
steady-state free precession combined with careful tuning of
the intrinsic spoiler gradients is harnessed to measure
displacement along specific physical directions. Efficient
segmented 3D-EPI allows for whole brain coverage within TR =
0.15 s. Motion sensitive terms are added to the extended
phase graph theory and simulations are used to optimize the
sequence parameters and to calibrate the phase sensitivity.
Pilot data on 4 healthy volunteers are acquired at 7T and
analyzed after cardiac retrogating. A set of three 1-min
scans with spoiler gradients along orthogonal axes is
required to estimate full 3D displacement
vectors.Simulations show that pulsatile displacements up to
around 1 mm can be resolved with the proposed method. In
vivo example data are in general agreement with predictions
from simulations. The precision of the displacement
measurements is estimated to be 0.01 mm using repeated scans
of the same subject, and while estimated displacement values
agree well with literature values for example tissue ROIs,
the measurement accuracy needs to be further explored. The
method provides a detailed view of the pulsatile motion
along all three physical axes and with full 3D coverage of
the brain.Brain Pulsation Imaging allows for quantitative
measurements of displacement vectors through the cardiac
cycle with whole brain coverage within 3-5 min. The method
is robust and should have significant potential for clinical
application.},
keywords = {Humans / Brain: diagnostic imaging / Brain: physiology /
Brain: anatomy $\&$ histology / Imaging, Three-Dimensional:
methods / Echo-Planar Imaging: methods / Algorithms /
Computer Simulation / Adult / Male / Motion /
Reproducibility of Results / 3D‐EPI (Other) / CSF (Other)
/ EPI (Other) / SSFP (Other) / UHF‐MRI (Other) / brain
(Other) / nbSSFP (Other) / neuroimaging (Other) /
non‐balanced (Other) / pulsation (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:41199430},
pmc = {pmc:PMC12746386},
doi = {10.1002/mrm.70156},
url = {https://pub.dzne.de/record/283104},
}