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@ARTICLE{Bayer:289448,
author = {T. Bayer and L. Bächter and C. Lutter and R. Janka and M.
Uder and V. Schöffel and F. W. Roemer and A. M. Nagel$^*$
and R. Heiss},
title = {{C}omparison of 3{T} and 7{T} magnetic resonance imaging
for direct visualization of finger flexor pulley rupture: an
ex-vivo study.},
journal = {Skeletal radiology},
volume = {53},
number = {11},
issn = {0364-2348},
address = {New York},
publisher = {Springer},
reportid = {DKFZ-2024-00770},
pages = {2469-2476},
year = {2024},
note = {2024 Nov;53(11):2469-2476},
abstract = {To compare image quality and diagnostic performance of 3T
and 7T magnetic resonance imaging (MRI) for direct depiction
of finger flexor pulleys A2, A3 and A4 before and after
artificial pulley rupture in an ex-vivo model using anatomic
preparation as reference.30 fingers from 10 human cadavers
were examined at 3T and 7T before and after being subjected
to iatrogenic pulley rupture. MRI protocols were comparable
in duration, both lasting less than 22 min. Two experienced
radiologists evaluated the MRIs. Image quality was graded
according to a 4-point Likert scale. Anatomic preparation
was used as gold standard.In comparison, 7T versus 3T had a
sensitivity and specificity for the detection of A2, A3 and
A4 pulley lesions with $100\%$ vs. $95\%,$ respectively
$98\%$ vs. $100\%.$ In the assessment of A3 pulley lesions
sensitivity of 7T was superior to 3T MRI $(100\%$ vs.
$83\%),$ whereas specificity was lower $(95\%$ vs. $100\%).$
Image quality assessed before and after iatrogenic rupture
was comparable with 2.74 for 7T and 2.61 for 3T.
Visualization of the A3 finger flexor pulley before rupture
creation was significantly better for 7 T (p < 0.001).
Interobserver variability showed substantial agreement at 3T
(κ = 0.80) and almost perfect agreement at 7T (κ =
0.90).MRI at 3T allows a comparable diagnostic performance
to 7T for direct visualization and characterization of
finger flexor pulleys before and after rupture, with
superiority of 7T MRI in the visualization of the normal A3
pulley.},
keywords = {3 Tesla (Other) / 7 Tesla (Other) / Climbing (Other) /
Finger flexor pulleys (Other) / High field MRI (Other)},
cin = {E020},
ddc = {610},
cid = {I:(DE-He78)E020-20160331},
pnm = {315 - Bildgebung und Radioonkologie (POF4-315)},
pid = {G:(DE-HGF)POF4-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:38607418},
doi = {10.1007/s00256-024-04671-x},
url = {https://inrepo02.dkfz.de/record/289448},
}