Volumetric Modulated Arc Therapy (VMAT)

Volumetric modulated arc therapy is a newer radiation therapy technique. It delivers the radiation dose as the treatment machine rotates. This technique shapes the radiation dose to the tumour. At the same time, it reduces the dose to the organs surrounding the tumour

Volumetric Modulated Arc Therapy (VMAT) works like intensity-modulated radiation therapy (IMRT). In both, we vary the radiation dose throughout treatment.  

What we use Volumetric Modulated Arc Therapy for 

VMAT is particularly useful for radiation therapy involving tumours near sensitive body organs. It can be an effective treatment for many types of cancer. 

What VMAT means for you 

VMAT planning and treatment is demanding and requires precision. The VMAT procedure takes around 20 minutes (less than half an hour). This is much like a three-dimensional conformal treatment. We spend most of this time getting your position right. We take x-rays each day to check that everything is lining up as planned and we can then give treatment. VMAT uses the same type of radiation as other radiotherapy treatments.  

The VMAT team 

Four of our radiation therapy sites offer the VMAT treatment. The team of specialists who plan and deliver VMAT include: 

  • radiation oncologists 

  • radiation therapists  

  • medical physicists.  

A range of other professionals will also support you including:  

  • nurses  

  • allied health practitioners.  

Our radiation therapy team is proud to offer this treatment. We continue to develop and progress treatment options for the people of Victoria. 

Please speak with your doctor to find out if VMAT is the best treatment choice for you. 

Related pages

Further Volumetric Modulated Arc Therapy information

VMAT: a review of current literature and clinical use in practice