In radiation therapy, what does the term 'boost' refer to?

The term 'boost' in radiation therapy specifically refers to the practice of delivering an increased dose of radiation to a particular area, typically the tumor, after an initial treatment phase. This approach is used to intensify the treatment effect on the cancer cells in that targeted region, ensuring that the tumor receives a higher, more effective dose of radiation without excessively raising the dose to surrounding healthy tissues.

This strategy is important in enhancing the efficacy of the treatment, as it helps to maximize local control of the tumor while minimizing the overall risks associated with radiation exposure to healthy parts of the body. By concentrating the therapeutic dose where it is needed most, clinicians aim to increase the likelihood of successfully treating the cancer and improving patient outcomes.