ESTRO35 Programme Book

SATURDAY 30 APRIL 2016

> Urinary incontinence rates in salvage high-dose-rate brachytherapy prostate cancer patients. P. Wojcieszek (Poland), M. Szlag, A. Cholewka, B. Białas, S. Kellas-Sleczka, M. Fijałkowski, A. Andrejczuk > MRI guided focal primary and (secondary) salvage HDR-BT in prostate cancer patients seems safe M. Maenhout (The Netherlands), M.A. Moerland, K.M. Van Vliet-van den Ende, R.I. Schokker, M. Borot de Battisti, M. Peters, M. Van Vulpen, J.R.N. Van der Voort van Zyp

PV-0039

PV-0040

Symposium PROTONS ORHEAVY IONS? 10:45 - 11:45 | ROOM 2

Proton beam therapy is developing rapidly, although clinical evidence is still sparse and its cost-effec- tiveness is still unclear. Radiotherapy with heavier ions is an even more complex technology but may offer additional clinical benefits. This symposium focuses on the scientific basis of these modalities and discusses potential advantages of protons vs. heavier particles. The session will present first the physi- cal characteristics of the various ion types and relevant differences for radiotherapy. Then radiobiol- ogy will be discussed, including a critical discussion of RBE models and the role of preclinical studies. Finally, the clinical evidence for ion beams will be summarised discussing esp. the question of feasibility and necessity of randomised clinical trials. 10:45 > Physical advantages of particles: protons vs. heavy ions, what is certain what is not? O. Jäkel (Germany) 11:05 > Radiobiological benefits of protons and heavy ions - advantages and disadvantages C.P. Karger (Germany) 11:25 > How strong is the current clinical evidence for protons and heavy ions? P. Fossati (Italy) Chair: O. Jäkel (Germany) Co-Chair: M. Krengli (Italy)

OC-0041

OC-0042

OC-0043

Proffered Papers RADIOBIOLOGY 1: RADIATION EFFECTS ON NORMAL TISSSUES AND THE MICROENVIROMENT

10:45 - 11:45 | LONDRA Chair: D. Kirsch (USA) Chair: N. Russell (The Netherlands)

SCIENTIFIC PROGRAMME | PROGRAMME AND EXHIBITION GUIDE

65