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Proton Beam Therapy (PBT) is a highly specialised form of radiotherapy that is more targeted than conventional radiotherapy. This means it causes less damage to the healthy tissue of the brain and so causes fewer side-effects. However, PBT is only suitable for a few types of brain tumour and, in most cases, does not lead to better outcomes than conventional radiotherapy. This factsheet describes PBT and how does it compare to conventional radiotherapy, who can have it, what it involves and side-effects, and answers some commonly asked questions.
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