Stereotactic Radiotherapy is most frequently used for treating brain tumours.
Stereotactic Radiotherapy is a specialised technique for external radiation. It requires special fastening and immobilization systems (stereotactic guides and frameworks) with a 3D coordinated system, which is independent of the patient, and allows specialists to more precisely locate the lesions which require treatment.
Also, this procedure requires radiotherapy generators with well-defined radiation beams (linear accelerators, gammaknife, cyberknife, tomotherapy) which converge, extremely selectively, on the lesion being treated, using high doses of radiation without increasing the radiation on surrounding healthy organs and structures.
Various extremely precise treatment sessions may be required. This procedure is most frequently used for treating brain tumours.
SBRT (Stereotactic Body Radiation Therapy) is a low radiation stereotactic treatment for extracerebral lesions. It is possible to treat lesions, such as inoperable lung tumours or hepatic metastasis, in a short period of time with tolerable secondary effects, and just one very high dosage radiation treatment session administered using stereotactic systems in radiosurgery.
This is recommended for malignant or benign lesions which are smaller than 3-4cm (brain metastasis, arteriovenous malformations, neurinomas, meningiomas).