Volumetric Modulated Arc Therapy (VMAT)

Volumetric modulated arc therapy (VMAT) precisely conforms the radiation to the cancer. The radiation is delivered only to the intended area, allowing the radiation oncologist to spare more surrounding healthy tissue and better avoid nearby critical anatomy. To further ensure accuracy, 3-D imaging at ultra-low doses allows the radiation oncologist and technologists to quickly and safely verify tumor position prior to treatment. Sophisticated monitoring tools further enhance precision by monitoring your treatment in real-time to ensure that the dose is delivered as precisely as your radiation oncologist prescribes it.

VMAT cuts radiation treatment times by one-half to two-thirds through delivering a higher and more targeted dose to cancerous tumors, without compromising your safety.

VMAT benefits those who find it difficult to lie completely still for the typical 30 or more minutes of treatment time.

During VMAT, the radiation machine rotates around you in single or a series of arcs delivering focused beams of radiation to the cancer. The shape and intensity of the radiation beams change as the machine rotates. These features mean that, in effect, the beam of radiation can come from an infinite number of angles, thereby reducing the dose of radiation to normal tissue while increasing the dose to the cancer. The arc-based delivery also allows the radiation oncologist to treat tumors that are adjacent to critical structures in the body, such as a tumor that may be wrapped around an organ.

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