Stereotactic radiation is a highly focussed form of radiation which may be used to treat various problems within the skull. It relies on absolute immobilization with a special headframe so treatment can be delivered with an accuracy approaching 0.5 mm. X-rays can then be shaped and delivered from many angles so the problem receives a high dose with little or no irradiation of the normal brain. This rapid fall-off in dose means that the treatment can be condensed into one session (stereotactic radiosurgery - SRS) or a few visits (stereotactic radiotherapy - SRT).

WBRC has had an active stereotactic progam since 1996 and uses a linear accelerator or Linac to produce the x-rays. From 2004 we have moved to the BrainlabTM system for treatment planning and delivery. The x-ray beam is shaped using 42 3mm tungsten leaves, each of which is moved independently using sophisticated computer controlled motors. This is the only system of its type in Australia and represents a significant advance in stereotactic treatment delivery.

Gamma knife treatment differs only in the way the x-rays are produced and cannot be used for multiple treatments (SRT).

Stereotactic treatment is usually employed for benign brain tumours such as meningioma, pituitary tumours and acoustic neuromas. Arteriovenous malformations and tumours of the skull base can also be successfully treated.