Measuring 3D knee dynamics using center out radial ultra-short echo time trajectories with a low cost experimental setup
Martin Krmer 1 , Karl-Heinz Herrmann 1 , Heide Boeth 2 , Christoph von Tycowicz 3 , Christian Knig 2 , Stefan Zachow 3 , Rainald M Ehrig 3 , Hans-Christian Hege 3 , Georg N Duda 2 , and Jrgen R Reichenbach 1
Medical Physics Group, Institute of
Diagnostic and Interventional Radiology, Jena University
Hospital - Friedrich Schiller University Jena, Jena,
Wolff Institute and Center for Musculoskeletal Surgery,
Charit Universittsmedizin Berlin, Berlin, Germany,
Institute Berlin, Berlin, Germany
To acquire dynamic movements of the whole knee with
isotropic resolution a 3D radial center-out acquisition
scheme is combined with a low cost experimental
measurement setup to perform single passive knee
flexion. With a spatial resolution of (22.214.171.124)
mm, the acquired 4D dynamic data sets are well suited
for highly flexible subsequent image analysis including
reconstruction of arbitrarily oriented or curved slices.
In this work, we describe the measurement setup and
imaging sequence and show the first basic measurement
and reconstruction results.
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