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@ARTICLE{Jarraya:166793,
author = {M. Jarraya and R. Heiss and J. Duryea and A. M. Nagel$^*$
and J. A. Lynch and A. Guermazi and M.-A. Weber and A.
Arkudas and R. E. Horch and M. Uder and F. W. Roemer},
title = {{B}one {S}tructure {A}nalysis of the {R}adius {U}sing
{U}ltrahigh {F}ield (7{T}) {MRI}: {R}elevance of {T}echnical
{P}arameters and {C}omparison with 3{T} {MRI} and
{R}adiography.},
journal = {Diagnostics},
volume = {11},
number = {1},
issn = {2075-4418},
address = {Basel},
publisher = {MDPI},
reportid = {DKFZ-2021-00123},
pages = {110},
year = {2021},
abstract = {Bone fractal signature analysis (FSA-also termed bone
texture analysis) is a tool that assesses structural changes
that may relate to clinical outcomes and functions. Our aim
was to compare bone texture analysis of the distal radius in
patients and volunteers using radiography and 3T and 7T
magnetic resonance imaging (MRI)-a patient group (n = 25)
and a volunteer group (n = 25) were included. Participants
in the patient group had a history of chronic wrist pain
with suspected or confirmed osteoarthritis and/or ligament
instability. All participants had 3T and 7T MRI including
T1-weighted turbo spin echo (TSE) sequences. The 7T MRI
examination included an additional high-resolution (HR) T1
TSE sequence. Radiographs of the wrist were acquired for the
patient group. When comparing patients and volunteers
(unadjusted for gender and age), we found a statistically
significant difference of horizontal and vertical fractal
dimensions (FDs) using 7T T1 TSE-HR images in low-resolution
mode (horizontal: p = 0.04, vertical: p = 0.01). When
comparing radiography to the different MRI sequences, we
found a statistically significant difference for low- and
high-resolution horizontal FDs between radiography and 3T T1
TSE and 7T T1 TSE-HR. Vertical FDs were significantly
different only between radiographs and 3T T1 TSE in the
high-resolution mode; FSA measures obtained from 3T and 7T
MRI are highly dependent on the sequence and reconstruction
resolution used, and thus are not easily comparable between
MRI systems and applied sequences.},
keywords = {MRI (Other) / X-ray (Other) / bone structure (Other) /
fractal signature analysis (Other) / wrist (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:33445536},
doi = {10.3390/diagnostics11010110},
url = {https://inrepo02.dkfz.de/record/166793},
}