a Department of Nuclear Medicine , Clinical Cancer Research Center, Aalborg University Hospital , Aalborg , Denmark. b Department of Clinical Medicine , Aalborg University , Aalborg , Denmark. c Department of Urology , Aalborg University Hospital , Aalborg , Denmark. d Department of Nuclear Medicine , Regional Hospital West Jutland , Herning , Denmark. e Department of Clinical Physiology and Nuclear Medicine , Herlev Hospital , Herlev , Denmark. f Department of Oncology , Aalborg University Hospital , Aalborg , Denmark. g Department of Urology , Regional Hospital West Jutland , Holstebro , Denmark.