A comprehensive 7 Tesla MRI protocol for quantitative (T1-, T2-, T2*-mapping) and morphological hip cartilage imaging
Andrea Lazik 1,2 , Jens M Theysohn 1 , Stephan Orzada 2 , Harald H Quick 2,3 , and Oliver Kraff 2
Department of Diagnostic and Interventional
Radiology and Neuroradiology, University Hospital Essen,
Essen, NRW, Germany,
L. Hahn Institute for Magnetic Resonance Imaging,
University Duisburg-Essen, Essen, NRW, Germany,
Field and Hybrid MR Imaging, University Hospital Essen,
Essen, NRW, Germany
A comprehensive hip cartilage protocol was established
at 7T MRI on 11 volunteers, combining morphological
(DESS, T1 VIBE) and quantitative imaging techniques
(T1-mapping in dGEMRIC-technique, T2-, T2*-mapping) with
high spatial resolution, and applied in patients with
acetabular cartilage transplants. Delineation of
acetabular and femoral cartilage increased after
intravenous contrast-agent administration in DESS and T1
VIBE, and was also good to excellent in the relaxation
maps. Values of T2- and T2*-relaxation times were not
affected by intravenous contrast agent administration.
Unenhanced pre-scans for dGEMRIC were nonessential.
According to these results, combining morphological and
quantitative hip cartilage imaging is possible at 7T.
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