title: Guest editorial.
authors.affiliation: Department of Medical Radiology, Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland.
authors.forename: Gustav K
authors.initials: GK
authors.lastname: von Schulthess
authors.affiliation: Department of Medical Radiology, Diagnostic and Interventional Radiology, Nuclear Medicine, University Hospital Zurich, Zurich, Switzerland.
authors.forename: Patrick
authors.initials: P
authors.lastname: Veit-Haibach
mesh_terms: D003952:Diagnostic Imaging; D006801:Humans; D009683:Nuclear Medicine