795 TRANSPERINEAL APPROACH INSERTION OF PRO-SPACE, A NOVEL BIODEGRADABLE INFLATABLE BALLOON SYSTEM FOR PROSTATE CANCER RADIOTHERAPY - RESULTS OF 24 CASES FROM A PROSPECTIVE MULTI-CENTER STUDY

1Padova University Hospital, Urology Padova, Italy; 2Barzilai Medical Center, Urology, Ashkelon, Israel; 3VA Urology, Urology, Richmond, VA, USA; 4Montefiore Medical Center, Urology, New York City, NY, USA 5University Hospital Schleswig-Holstein, Urology, Lubeck, Germany; 6TASMC, Radiotherapy, Tel Aviv, Israel; 7VA Urology, Radiotherapy, Richmond, VA, USA; 8Montefiore Medical Center, Radiotherapy, New York City, NY, USA; 9University Hospital Schleswig-Holstein, Radiotherapy, Lubeck, Germany; 10Virginia Commonwealth University, Radiotherapy, Richmond, VA, USA; 11Padova University Hospital, Radiotherapy, Padova, Italy. 795