1. Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen; Essen Germany
2. Department of Diagnostic and Interventional Radiology and Neuroradiology; University Duisburg-Essen, University Hospital; Essen Germany
3. Division of Medical Physics in Radiology; German Cancer Research Center (DKFZ); Heidelberg Germany