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Radiotherapy

Radiotherapy

3dimensional Radiotherapy

3D conformal radiation therapy is a cancer treatment that shapes the radiation beams to match the shape of the tumor.
In the past, radiation beams only matched the height and width of the tumor — exposing healthy tissue to radiation. Advances in imaging technology have made it possible to locate and treat the tumor more precisely.
Conformal radiation therapy uses the targeting information to focus precisely on the tumor, while avoiding the healthy surrounding tissue.
This exact targeting makes it possible to use higher levels of radiation in treatment. More radiation is more effective in shrinking and killing tumors.

Intensity Modulated Radiotherapy (Imrt)

Intensity-modulated radiation therapy (IMRT) gives radiation therapists the ability to “sculpt” the edges of a tumor, minimizing the damage to adjacent healthy tissue.
Tumors are irregularly shaped, but conventional radiation treatments deliver radiation in straight lines. This means that — while the whole tumor receives radiation — any healthy tissue close to the tumor may get radiation as well.
IMRT technology allows the radiation oncologist to deliver radiation to a tumor with more precision and accuracy, resulting in the potential for fewer side effects and higher cure rates.

Volumetric Modulated Arc Radiotherapy (Vmat)

VMAT is a type of IMRT technique. VMAT stands for Volumetric Arc Therapy. VMAT can also be called Rapid Arc.
VMAT is different to normal IMRT in that the radiotherapy machine rotates around the patient during a radiotherapy beam in an arc shape.
The machine continuously reshapes and changes the intensity of the radiation beam as it moves around the body.
Giving the radiotherapy in this way makes it very accurate, shortens the treatment time, and uses a lower overall dose of radiation.
The treatment usually takes about 10 minutes.

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