Volumetric Modulated Arc Therapy

What is Volumetric Modulated Arc Therapy (VMAT)?

Volumetric Modulated Arc Therapy (VMAT) is an advanced radiation therapy technique that allows for the delivery of high-precision, high-dose radiation treatment to tumours in a short amount of time. VMAT is a variation of Intensity-Modulated Radiation Therapy (IMRT) that optimises the distribution of the radiation dose by continuously rotating the linear accelerator during the treatment process. This enables more precise targeting of the tumour while minimising radiation damage to the surrounding healthy tissues.

The main advantage of VMAT is its ability to continuously adjust the shape and intensity of the radiation beam throughout the treatment process. This ensures a uniform distribution of the radiation dose within the tumour while minimising the dose to the surrounding normal tissues.

Why do you need Volumetric Modulated Arc Therapy (VMAT)?

There are several advantages to VMAT:

  • Higher cure rates — Higher doses of radiation can be given to destroy the tumour
  • Fewer side effects — Computer images are used to plan and deliver very focused radiation beams, avoiding the surrounding healthy tissue
  • Option of retreatment — If it is needed, retreatment can be given as the healthy tissue has received less radiation than with conventional radiation therapy
  • More people can be treated — Even if your tumour is difficult to reach or is located close to a vital organ, it can be treated with radiation therapy
  • Better quality of life — Your body will recover better and faster than with conventional radiation therapy

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