Stereotactic radiosurgery (SRS) is a specific type of targeted radiation therapy that can be used to treat small benign or malignant (cancerous) brain tumours and those tumours that can’t be treated with surgery or that have metastasised (tumours that have spread to the brain from other areas of the body).1
It involves a special type of high-dose radiation therapy that targets affected areas in the brain whilst avoiding healthy brain tissue.1 SRS is usually delivered in one to five treatments.
Compared to traditional radiation therapy for metastatic disease to the brain, which involves treating the entire brain, SRS only targets the individual tumours with high doses of radiation. This provides less radiation to healthy brain tissue, reducing the risk of adverse intellectual function and the impact of side effects (e.g. hair loss and headaches), thus providing improved quality of life for patients.
At Bowen Icon Cancer Centre we use state-of-the-art technologies which can deliver treatment to multiple brain tumours at one time. This reduces the need to treat multiple tumours separately, resulting in a much shorter treatment time for patients. HyperArc is an advanced technique used to help deliver this treatment; other technologies may be used to treat multiple tumours, depending on the location of your treatment centre, but the software all work to achieve the best possible outcomes for patients.
HyperArc is the latest technological advancement from Varian Medical Systems, and accurately targets multiple tumours while ensuring limited doses of radiation to surrounding healthy brain tissue. In 2019 Bowen Icon Cancer Centre was the first in New Zealand to treat a Wellington cancer patient with multiple brain tumours using Varian’s HyperArc. For more information on HyperArc, click here.