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Abstract #4166

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

1 Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, NRW, Germany, 2 Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Essen, NRW, Germany, 3 High 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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