1. Department of Diagnostic and Interventional Radiology and Nuclear Medicine; University Medical Center Hamburg-Eppendorf; Hamburg Germany
2. Erwin L. Hahn Institute for Magnetic Resonance Imaging; University Duisburg-Essen; Essen Germany
3. Department of Diagnostic and Interventional Radiology and Neuroradiology; University Hospital, University Duisburg-Essen; Essen Germany
4. High Field and Hybrid MR Imaging; University Hospital, University Duisburg-Essen; Essen Germany