[1] Univ Hosp Cologne, Dept Diagnost & Intervent Radiol, Bergisch Gladbach, Germany
[2] Univ Hosp Cologne, Ctr Integrated Oncol, Bergisch Gladbach, Germany
[3] Univ Hosp Cologne, Dept Nucl Med, Cologne, Germany
[4] Urol Ctr Refrath, Bergisch Gladbach, Germany