[1] Univ Zurich, Univ Hosp Zurich, Dept Nucl Med, Zurich, Switzerland
[2] Univ Messina, Dept Biomed & Dent Sci & Morpho Funct Imaging, Nucl Med Unit, Messina, Italy
[3] Ri MED Fdn, Palermo, Italy
[4] Univ Hosp Zurich, Inst Diagnost & Intervent Radiol, Zurich, Switzerland
[5] Natl Res Council IBFM CNR, Inst Mol Bioimaging & Physiol, Cefalu, Italy
[6] Swiss Fed Inst Technol, Comp Vis Lab, Zurich, Switzerland
[7] Univ Hosp Zurich, Dept Urol, Zurich, Switzerland
[8] Cantonal Hosp Baden, Dept Nucl Med, Baden, Switzerland