Volumetric Modulated Arc Therapy (VMAT) for Brain Metastases

Radiotherapy to the whole brain is standard treatment for cancer that has spread to the brain (brain metastases) as it treats both the metastases that can be seen on scans and the brain metastases that are too small to be seen on scans. This study will use a novel radiotherapy technique, called volumetric modulated arc therapy (VMAT), to treat patients with brain metastases. This technique allows delivery of both a standard radiation dose to the whole brain as well as a higher radiation dose to the brain metastases at the same time. The study will assess the effectiveness of using VMAT in treating brain metastases, and examine its potential side-effects.