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@ARTICLE{Fortin:278071,
author = {Fortin, Marc-Antoine and Stirnberg, Rüdiger and Völzke,
Yannik and Lamalle, Laurent and Pracht, Eberhard and Löwen,
Daniel and Stöcker, Tony and Goa, Pal Erik},
title = {{MPRAGE}like: {A} novel approach to generate {T}1w images
from multi-contrast gradient echo images for brain
segmentation.},
journal = {Magnetic resonance in medicine},
volume = {94},
number = {1},
issn = {1522-2594},
address = {New York, NY [u.a.]},
publisher = {Wiley-Liss},
reportid = {DZNE-2025-00562},
pages = {134 - 149},
year = {2025},
abstract = {Brain segmentation and multi-parameter mapping (MPM) are
important steps in neurodegenerative disease
characterization. However, acquiring both a high-resolution
T1w sequence like MPRAGE (standard input to brain
segmentation) and an MPM in the same neuroimaging protocol
increases scan time and patient discomfort, making it
difficult to combine both in clinical examinations.A novel
approach to synthesize T1w images from MPM images, named
MPRAGElike, is proposed and compared to the standard
technique used to produce synthetic MPRAGE images
(synMPRAGE). Twenty-three healthy subjects were scanned with
the same imaging protocol at three different 7T sites using
universal parallel transmit RF pulses. SNR, CNR, and
automatic brain segmentation results from both MPRAGElike
and synMPRAGE were compared against an acquired MPRAGE.The
proposed MPRAGElike technique produced higher SNR values
than synMPRAGE for all regions evaluated while also having
higher CNR values for subcortical structures. MPRAGE was
still the image with the highest SNR values overall. For
automatic brain segmentation, MPRAGElike outperformed
synMPRAGE when compared to MPRAGE (median Dice Similarity
Coefficient of 0.90 versus 0.29 and Average Asymmetric
Surface Distance of 0.33 versus 2.93 mm, respectively), in
addition to being simple, flexible, and considerably more
robust to low image quality than synMPRAGE.The MPRAGElike
technique can provide a better and more reliable alternative
to synMPRAGE as a substitute for MPRAGE, especially when
automatic brain segmentation is of interest and scan time is
limited.},
keywords = {Humans / Brain: diagnostic imaging / Brain: anatomy $\&$
histology / Male / Adult / Female / Algorithms / Magnetic
Resonance Imaging: methods / Image Processing,
Computer-Assisted: methods / Image Interpretation,
Computer-Assisted: methods / Reproducibility of Results /
Image Enhancement: methods / Signal-To-Noise Ratio /
Sensitivity and Specificity / UHF‐MRI (Other) / brain
segmentation (Other) / multi‐contrast (Other) /
multi‐parameter mapping (Other) / neuroimaging (Other) /
synthetic MPRAGE (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:39902546},
pmc = {pmc:PMC12021339},
doi = {10.1002/mrm.30453},
url = {https://pub.dzne.de/record/278071},
}