A highly precise product, the Radixact is the most recent model in the family of devices known as "tomotherapy". It is still used in only very small numbers worldwide.
Its most important feature is helical dose delivery. The system combines a linear accelerator with a megavoltage computed tomography function. The device consists of two rows of multileaf collimators and a 6 MV linac system. The two multileaf collimators enter the field in turn and, thanks to the irradiation delivered by a continuously rotating gantry similar to a CT scanner, allow the dose intensity to be adjusted with great conformity and the dose to be distributed evenly across the target.
Another important feature is the absence of any limit on the treatment field. Unlike other systems, its large vertical treatment field of 40 x 130 cm allows complete irradiation of the bone marrow, the whole body and the craniospinal region. Image-guided radiotherapy relies on genuine tomographic images. As the dose can be calculated from these images, they can also be used in adaptive radiotherapy.
The main treatment techniques performed with the Radixact are:
- Intensity-modulated radiotherapy (IMRT, 3DCRT)
- Image-guided radiotherapy (IGRT)
- Adaptive radiotherapy
- Total body and half-body irradiation (TBI)
General technical features of the Radixact:
- Precise treatment thanks to genuine three-dimensional tomographic images.
- Irradiation with fewer side effects.
- Painless procedure.
- Hair preservation thanks to head protection during brain irradiation.
- More homogeneous and uniform dose distribution than on other platforms in certain regions.
- Continuous treatment of wide, extensive areas.