Particle Therapy 2017

Oliver Jäkel Range uncertainties are a problem • Requires proper on-line imaging • Tools for adaptive RT are missing • Large margins needed Image guidance is not fully developed • Mostly just orthogonal X-rays • CBCT just recently introduced, quality is low Conformation not always optimal • Treatment with few beams (mainly 2) • Rotational therapy is absent • Lateral penumbra is worse than photons at larger depth Treatment time is still longer Radiobiology not well understood (esp. Hypo-Fx) COST EFFECTIVENESS Medical Physics The deficits of modern proton RT

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