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Looks like a CT scanner because it is a CT scanner, allowing efficient 3D CT imaging to be used for ensuring the accuracy of treatment for every patient, every day. For more on the history of this technology go here.

Delivers helical (continuous 360) IMRT that uses tens of thousands of narrow beamlets, all targeting the tumor and individually-optimized to contribute to the total tumor dose

Offers by far the most beamlets of any form of IMRT, which translates to the most precise conformal radiotherapy available (go here). The benefits from Tomotherapy have been demonstrated for multiple cancer sites (go here).

The main advantages can be shown treating a lung cancer patient, the beam can be targeted to avoid normal lung and since the tumor is imaged everyday on CT scan, the doctor can verify that the tumor is getting smaller (see video here).

Diseases treated with TomoTherapy
 

see slide show below, and to enlarge images click here

More on the advantages of Tomotherapy:

TomoTherapy Highly Integrated Adaptive Radiotherapy (HI-ART) is a new radiation therapy option

The TomoTherapy HI-ART system combines an advanced form of Intensity Modulated Radiation Therapy (IMRT), the accuracy of CT scanning technology and advanced tools for planning and delivering radiation therapy in one machine.

With TomoTherapy HI-ART, the Radiation Therapy Team can:

  • Sculpt small, powerful and precise radiation beams to hit hard-to-reach tumors
  • Target tumors using built-in CT scanning to confirm the shape and position of the tumor seconds before your treatment begins
  • Reduce radiation exposure to healthy surrounding tissue, often dramatically

Traditional radiation therapies project radiation on a tumor from a few directions. TomoTherapy HI-ART allows your CTCA Radiation Therapy Team to deliver precise and powerful doses of radiation therapy from 360-degrees.

An on-board CT scanner helps your CTCA care team determine if your tumor has shifted or changed shape since your last treatment. This information allows your radiation oncologist to plan your treatment better to avoid damage to muscle tissue, the spine, the lungs and other sensitive organs.

If you have reached your maximum tolerance dose of traditional radiation, or if your tumor is in a hard-to-reach area, TomoTherapy HI-ART may open new doors to advanced radiation therapy treatments.