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What are the different types of external beam radiotherapy?

What are the different types of external beam radiotherapy?

Types of external beam radiotherapy

  • Conformal radiotherapy.
  • Intensity-modulated radiotherapy (IMRT)
  • Volumetric-modulated arc radiotherapy (VMAT)
  • Image guided radiotherapy (IGRT)
  • 4D radiotherapy (four-dimensional radiotherapy)
  • Stereotactic radiotherapy.
  • Total body irradiation (TBI)
  • Proton beam therapy.

What type of beam is used in radiation therapy?

Most radiation therapy machines use photon beams. Photons are also used in x-rays, but x-rays use lower doses. Photon beams can reach tumors deep in the body.

What is external beam radiography?

External beam therapy (EBT), also called external radiation therapy, is a method for delivering a beam or several beams of high-energy x-rays to a patient’s tumor. Beams are generated outside the patient (usually by a linear accelerator, see below) and are targeted at the tumor site.

What is the difference between EBRT and IMRT?

IMRT is a special form of EBRT involving the delivery of hundreds of small radiation beams with different intensities, entering the body from a number of different angles.

What is 3d CRT?

A procedure that uses a computer to create a 3-dimensional picture of the tumor. This allows doctors to give the highest possible dose of radiation to the tumor, while sparing the normal tissue as much as possible. Also called 3-dimensional conformal radiation therapy and 3-dimensional radiation therapy.

What radioisotopes are used in external radiotherapy?

The isotopes most commonly used in IRT are iridium-192 or iodine-125. Iridium (half-life 74 days), usually in the form of a wire, is used as a removable source.

What are the four radiation beams?

There are four major types of radiation: alpha, beta, neutrons, and electromagnetic waves such as gamma rays.

What is the difference between external beam radiotherapy and brachytherapy?

Brachytherapy allows doctors to deliver higher doses of radiation to more-specific areas of the body, compared with the conventional form of radiation therapy (external beam radiation) that projects radiation from a machine outside of your body.

What is difference between IGRT and IMRT?

State-of-the-art radiation therapy at Genesis Healthcare incorporates intensity-modulated radiation therapy (IMRT) to allow the radiation dose to exactly match the highest cancer cell burden, and image-guided radiation therapy (IGRT) to allow the delivery of each treatment with a very high degree of accuracy.

What is the difference between IMRT and 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.