[1] Univ Bologna, Bologna, Italy
[2] Univ Hosp Essen, Dept Nucl Med, Essen, Germany
[3] Ludwig Maximilians Univ Munchen, Dept Nucl Med, Munich, Germany
[4] Tech Univ Munich, Klinikum Rechts Isar, Dept Nucl Med, Munich, Germany
[5] Univ Calif Los Angeles, Ahmanson Translat Imaging Div, Los Angeles, CA USA
[6] Bern Univ Hosp, Dept Nucl Med, Bern, Switzerland
[7] Heidelberg Univ Hosp, Dept Nucl Med, Heidelberg, Germany
[8] Univ Hosp Essen, Dept Radiol, Essen, Germany
[9] Univ Hosp Essen, Dept Urol, Essen, Germany
[10] Univ Bologna, Dept Biomed & Neuromotor Sci, Bologna, Italy