1. Siemens Healthcare GmbH Siemensstr. 3 Forchheim91301 Germany
2. Department of Medical Physics Faculty of Physics Ludwig‐Maximilians‐Universität München Am Coulombwall 1 Garching85748 Germany
3. Siemens Medical Solutions USA, Inc. 40 Liberty Bouldevard Malvern PA19355 USA
4. Russell H. Morgan Department of Radiology and Radiological Science Johns Hopkins University 601 N Caroline St, JHOC 4253 Baltimore MD21287 USA