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@ARTICLE{Preisner:241161,
author = {F. Preisner and J. C. Hayes and T. Charlet and F. Carinci
and T. Hielscher$^*$ and D. Schwarz and D. F. Vollherbst and
M. O. Breckwoldt and J. Jesser and S. Heiland and M.
Bendszus and T. Hilgenfeld},
title = {{S}imultaneous {M}ultislice {A}ccelerated {TSE} for
{I}mproved {S}patiotemporal {R}esolution and {D}iagnostic
{A}ccuracy in {M}agnetic {R}esonance {N}eurography: {A}
{F}easibility {S}tudy.},
journal = {Investigative radiology},
volume = {58},
number = {5},
issn = {0020-9996},
address = {[Erscheinungsort nicht ermittelbar]},
publisher = {Ovid},
reportid = {DKFZ-2023-00269},
pages = {363-371},
year = {2023},
note = {2023 May 1;58(5):363-371},
abstract = {This study aims to evaluate the utility of simultaneous
multislice (SMS) acceleration for routine magnetic resonance
neurography (MRN) at 3 T.Patients with multiple sclerosis
underwent MRN of the sciatic nerve consisting of a standard
fat-saturated T2-weighted turbo spin echo (TSE) sequence
using integrated parallel acquisition technique (PAT2)
acceleration and 2 T2 TSE sequences using a combination of
PAT-SMS acceleration (1) to reduce scan time (PAT2-SMS2;
SMS-TSEFAST) and (2) for time neutral increase of in-plane
resolution (PAT1-SMS2; SMS-TSEHR). Acquisition times were
5:29 minutes for the standard T2 TSE, 3:12 minutes for the
SMS-TSEFAST, and 5:24 minutes for the SMS-TSEHR. Six
qualitative imaging parameters were analyzed by 2 blinded
readers using a 5-point Likert scale and T2 nerve lesions
were quantified, respectively. Qualitative and quantitative
image parameters were compared, and both interrater and
intrarater reproducibility were statistically assessed. In
addition, signal-to-noise ratio/contrast-to-noise ratio
(CNR) was obtained in healthy controls using the exact same
imaging protocol.A total of 15 patients with MS (mean age ±
standard deviation, 38.1 ± 11 years) and 10 healthy
controls (mean age, 29.1 ± 7 years) were enrolled in this
study. CNR analysis was highly reliable (intraclass
correlation coefficient, 0.755-0.948) and revealed a
significant CNR decrease for the sciatic nerve for both SMS
protocols compared with standard T2 TSE
(SMS-TSEFAST/SMS-TSEHR, $-39\%/-55\%;$ P ≤ 0.01).
Intrarater and interrater reliability of qualitative image
review was good to excellent (κ: 0.672-0.971/0.617-0.883).
Compared with the standard T2 TSE sequence, both SMS methods
were shown to be superior in reducing pulsatile flow
artifacts (P < 0.01). Ratings for muscle border sharpness,
detailed muscle structures, nerve border sharpness, and
nerve fascicular structure did not differ significantly
between the standard T2 TSE and the SMS-TSEFAST (P > 0.05)
and were significantly better for the SMS-TSEHR than for
standard T2 TSE (P < 0.001). Muscle signal homogeneity was
mildly inferior for both SMS-TSEFAST (P > 0.05) and
SMS-TSEHR (P < 0.001). A significantly higher number of T2
nerve lesions were detected by SMS-TSEHR (P ≤ 0.01)
compared with the standard T2 TSE and SMS-TSEFAST, whereas
no significant difference was observed between the standard
T2 TSE and SMS-TSEFAST.Implementation of SMS offers either
to substantially reduce acquisition time by over $40\%$
without significantly impeding image quality compared with
the standard T2 TSE or to increase in-plane resolution for a
high-resolution approach and improved depiction of T2 nerve
lesions while keeping acquisition times constant. This
addresses the specific needs of MRN by providing different
imaging approaches for 2D clinical MRN.},
cin = {C060},
ddc = {610},
cid = {I:(DE-He78)C060-20160331},
pnm = {313 - Krebsrisikofaktoren und Prävention (POF4-313)},
pid = {G:(DE-HGF)POF4-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:36729753},
doi = {10.1097/RLI.0000000000000940},
url = {https://inrepo02.dkfz.de/record/241161},
}