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@ARTICLE{Laader:130875,
author = {A. Laader and K. Beiderwellen and O. Kraff and S. Maderwald
and K. Wrede and M. Ladd$^*$ and T. C. Lauenstein and M.
Forsting and H. H. Quick and K. Nassenstein and L. Umutlu},
title = {1.5 versus 3 versus 7 {T}esla in abdominal {MRI}: {A}
comparative study.},
journal = {PLoS one},
volume = {12},
number = {11},
issn = {1932-6203},
address = {Lawrence, Kan.},
publisher = {PLoS},
reportid = {DKFZ-2017-05951},
pages = {e0187528 -},
year = {2017},
abstract = {The aim of this study was to investigate and compare the
feasibility as well as potential impact of altered magnetic
field properties on image quality and potential artifacts of
1.5 Tesla, 3 Tesla and 7 Tesla non-enhanced abdominal
MRI.Magnetic Resonance (MR) imaging of the upper abdomen was
performed in 10 healthy volunteers on a 1.5 Tesla, a 3 Tesla
and a 7 Tesla MR system. The study protocol comprised a (1)
T1-weighted fat-saturated spoiled gradient-echo sequence (2D
FLASH), (2) T1-weighted fat-saturated volumetric
interpolated breath hold examination sequence (3D VIBE), (3)
T1-weighted 2D in and opposed phase sequence, (4) True fast
imaging with steady-state precession sequence (TrueFISP) and
(5) T2-weighted turbo spin-echo (TSE) sequence. For
comparison reasons field of view and acquisition times were
kept comparable for each correlating sequence at all three
field strengths, while trying to achieve the highest
possible spatial resolution. Qualitative and quantitative
analyses were tested for significant differences.While 1.5
and 3 Tesla MRI revealed comparable results in all assessed
features and sequences, 7 Tesla MRI yielded considerable
differences in T1 and T2 weighted imaging. Benefits of 7
Tesla MRI encompassed an increased higher spatial resolution
and a non-enhanced hyperintense vessel signal at 7 Tesla,
potentially offering a more accurate diagnosis of abdominal
parenchymatous and vasculature disease. 7 Tesla MRI was also
shown to be more impaired by artifacts, including residual
B1 inhomogeneities, susceptibility and chemical shift
artifacts, resulting in reduced overall image quality and
overall image impairment ratings. While 1.5 and 3 Tesla T2w
imaging showed equivalently high image quality, 7 Tesla
revealed strong impairments in its diagnostic value.Our
results demonstrate the feasibility and overall comparable
imaging ability of T1-weighted 7 Tesla abdominal MRI towards
3 Tesla and 1.5 Tesla MRI, yielding a promising diagnostic
potential for non-enhanced Magnetic Resonance Angiography
(MRA). 1.5 Tesla and 3 Tesla offer comparably high-quality
T2w imaging, showing superior diagnostic quality over 7
Tesla MRI.},
cin = {E020},
ddc = {500},
cid = {I:(DE-He78)E020-20160331},
pnm = {315 - Imaging and radiooncology (POF3-315)},
pid = {G:(DE-HGF)POF3-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29125850},
doi = {10.1371/journal.pone.0187528},
url = {https://inrepo02.dkfz.de/record/130875},
}