Volumetric Modulated Arc Therapy (VMAT) is a conformal technique where the radiation is delivered continuously as the machine rotates around the patient. This allows for accurate shaping of the radiation beam, reducing dose to healthy tissues adjacent to the tumor/tumor bed. The VMAT technique is used to treat many different tumor sites.
The treatment time for a VMAT treatment is 15-30minutes and is used in conjunction with image guided radiation therapy (IGRT) techniques to ensure the accuracy of treatment delivery (see details for IGRT below).
The Radiation Oncologist will assess the suitability for VMAT on a case by case basis.