paediatrics Brussels 17

• Modelling studies : suggest a significant reduction in the risk of SMN . For a paediatric patient with an orbital RMS by a factor of 2 [Miralbell 2002, Paganetti 2012, Taddei 2015] . and for a MB case undergoing CSI by a factor of 8-15 when compared with IMRT or XRT [Miralbell 2001]. Notably, protons provided more risk reduction for larger than smaller RT volumes .