Particle Therapy 2017

Fast beam delivery – state of the art in photon RT Treatment of left sided breast cancer (reduction of heart dose) • Delivery of 2Gy during 4 phases of breath-hold for < 10s • Motion control via surface monitoring (Vision RT) • Dose rates: 10 Gy /min Normal breathing

Heart sparing effect 10-fold reduction of RT related deaths projected

Deep inspiration breath-hold

FR Bartlett, JOVE 7/3 2014

Page 8 Delivery in less than 1 breathing cycle / breath-hold means: • mitigation of all motion related uncertainties to a minimum • reduction of treated volume of normal tissue • simplification of the planning and delivery Development of very fast p-beam delivery needed Oliver Jäkel Medical Physics