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ProBeam® Proton Therapy

Proton therapy is a major technological advancement in cancer care. The effectiveness of proton therapy is due to the way the energy is delivered at a prescribed depth known as the Bragg Peak.

Varian's ProBeam® system is at the forefront of the industry, having created the world's first commercially available pencil-beam scanning system, which is the most precise form of proton therapy available. Only pencil-beam scanning can deliver intensity-modulated proton therapy (IMPT), which is recognised for its effectiveness and the conformity of the dose delivery, and it is also considered an advancement over the other proton-therapy delivery methods.

Currently, proton therapy—offered at 48 centres worldwide—represents only a small percentage of the radiotherapy treatment options. But many centres are in the planning or construction stage.

ProBeam Compact Single-Room Proton Therapy Solution

ProBeam Compact Single-Room Proton Therapy Solution

With the ProBeam System, clinicians can take advantage of Varian's first-in-the- industry expertise in pencil-beam scanning, which offers a more precise control from the beam to the targeted tumour. In addition, a single-room system requires significantly less space than a multi-room proton-therapy centre, fitting into an area the size of a tennis court or about 20 parking spaces.

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ProBeam Multi-Room Proton Therapy System

ProBeam Multi-Room Proton Therapy System

Some centres may choose a multi-room  proton centre with its capacity to treat higher numbers of patients. Others may choose a compact, single-room system. Varian's ProBeam system delivers the same technologically advanced pencil-beam scanning therapy—as well as a fully  rotational gantry, a single integrated console and other advanced  functions—regardless of the number of treatment rooms.

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Brief Look at Pencil-Beam Scanning Advantages

Varian stands apart from other proton-therapy systems in that it uses pencil-beam scanning exclusively. With the ability to program pencil-beam scanning to the precise depth of the tumour, clinicians can now achieve the following:

  • Deliver higher radiation doses with a conformity and dosage speed that are greater than those of the scattering-proton technology.
  • Sculpt doses to the complex shapes that reflect the contour
    of the tumours
  • Treat tumours in difficult locations; for example, tumours that
    are surrounded by critical, healthy tissue and organs
  • Can often reduce the side-effects that are common in traditional
    radiotherapy, due to the sparing of the healthy tissue

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