Radixact
What is Radixact?
The Radixact device is a new model in the "tomotherapy" family from Accuray. It is a device that is still rarely used worldwide. Its fundamental feature is its helical (circular) design. The system is formed by combining the megavoltage computed tomography function with linear accelerator systems into a single device.
The device consists of a fast multi-leaf collimator and a 6MV LINAC system that form opposing arrays. The dual multi-leaf collimators rapidly move in and out of the field, providing a high degree of dose conformity and intensity modulation. The device, like a computed tomography scanner, performs continuous gantry rotation while delivering radiation, creating the desired homogeneous dose at the target.
Another important feature is that there is no limit to the treatment field size. Unlike other systems, the Radixact has a treatment field of 40x130 cm in the superior-inferior (head-to-foot) direction, allowing for total body irradiation, all-body irradiation, and craniospinal irradiations. The imaging model used for image-guided radiotherapy is real computed tomography images. These images, which are suitable for dose calculation, can also be used for adaptive radiotherapy applications.
What can be done with Radixact?
Some of the main treatment techniques performed with the Radixact device are:
- Intensity-Modulated Radiation Therapy (IMRT, 3DCRT)
- Image-Guided Radiation Therapy (IGRT)
- Adaptive Radiation Therapy
- Total and Partial Body Irradiations (TBI)
General features of the Radixact device:
- Precision treatments can be performed using 3D real computed tomography images.
- Patients are irradiated with minimal side effects.
- Patients do not feel pain during treatment.
- In brain irradiations, scalp protection can be provided to preserve patients' hair.
- More homogeneous and uniform dose distributions can be achieved in some areas compared to other platforms.
- Provides uninterrupted treatment capability over wide and long areas.