Abstract #1258
Accelerated 3D RARE for Positional Weight-Bearing MRI of ACJ Bone Fixation with Metal Implants
Marco Vicari 1,2 , Kaywan Izadpanah 3 , Andrea Serra 4 , Iulius Dragonu 2 , Guobin Li 2 , Maddalena Strumia 2,5 , and Juergen Hennig 2
1
Esaote S.p.A., Freiburg, Germany,
2
Dept.
of Radiology, Medical Physics, University Medical Center
Freiburg, Freiburg, Germany,
3
Dept.
of Orthopedics and Trauma Surgery, University Medical
Center Freiburg, Freiburg, Germany,
4
Esaote
S.p.A., Genoa, Italy,
5
Deutsches
Konsortium fr translationale Krebsforschung (DKTK),
German Cancer Research Center (DKFZ), Heidelberg,
Germany
An interesting clinical application of MRI near metal
implants consists in checking the functionality of the
acromio-clavicular joint of the shoulder after treatment
by bone fixation with metal plates. The overall
acquisition time is usually very long, since imaging at
different abduction degrees of the shoulder is required,
with a quite demanding spatial resolution to allow
precise quantitative evaluations. Accelerated 3D RARE
imaging for open-configuration, tilting MRI scanners at
low-field well suits this clinical task, since it
allows, within reasonable acquisition times, positional
MRI under physiological weight-bearing with sensibly
less metal-induced artifacts in comparison with
high-field scanners.
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