Goetz Hannes
Welsch1,2, Lukas Zak3, Tallal Charles Mamisch4,
Dominik Paul5, Lars Lauer5, Friedrich Frank Hennig2,
Stefan Marlovits6, Siegfried Trattnig1
1MR Center, Department of Radiology,
Medical University of Vienna, Vienna, Austria; 2Department of
Trauma and Orthopaedic Surgery, University Hospital of Erlangen, Erlangen,
Germany; 3Center for Joints and Cartilage, Department of Trauma
Surgery, Medical University of Vienna, Austria; 4Department of
Orthopaedic Surgery, University of Basel, Basel, Switzerland; 5Siemens
Healthcare, Erlangen, Germany; 6Center for Joints and Cartilage,
Department of Trauma Surgery, Medical University of Vienna, Vienna, Austria
The
recently described 3D-magnetic resonance observation of cartilage repair
tissue (MOCART) score was prepared by standard MR sequences, by an isotropic
PDfs-weighted 3D-TSE-sequence (PD-SPACE), and by an isotropic
3D-steady-state-free-precession sequence (True-FISP) to assess correlations
in the diagnostic performance of the different sequences in post-operative
articular cartilage imaging. Although all sequences were able to assess
cartilage repair tissue after matrix-associated autologous chondrocyte transplantation,
the isotropic sequences with the possible multiplanar-reconstruction provided
more information in less time. The PD-SPACE sequence seems slightly superior
to the True-FISP sequence due to a better performance in the depiction of the
subchondral bone and less artifacts.