Brain Tumours

Attributes of modern local RT delivery refinements of conformal radiotherapy

precision conformality

intrafraction patient and tumour motion interfraction changes in tumour & normal tissue multiple conformal fixed fields multiple isocentres (gamma knife/Linac) multiple small beams (Cyberknife) IMRT static arcing (VMAT/RapidArc/Tomotherapy)

photons protons time factor (4D RT)

quality assurance

imaging closer to treatment delivery (IGRT)

Classification of radiotherapy technologies