The most widely used radiosurgery devices include: cobalt-sourced systems (Gamma Knife), modified linear accelerators, and the CyberKnife®. All of these devices are capable of delivering the desired radiation dose to a designated target, however there can be important differences between these devices, which may have a significant impact on treatment clinical outcome
| |
CyberKnife® |
Gamma Knife® |
Other Linac Systems
(Elekta Synergy®, Novalis®, Varian Trilogy®, TomoTherapy®) |
| |
Yes |
Yes |
No |
| Also Does “Conventional” Radiotherapy |
|
No |
No |
Yes |
| Anatomic Area treatable with Radiosurgical Precision |
|
Brain, Spine,
Entire Body |
Brain |
Brain +/- other selected sites depending upon specific system |
|
No |
Yes |
Yes |
| |
No |
Yes |
No |
| Capable of divided treatments to better preserve adjacent tissues |
|
Yes |
No |
Yes |
| Continuously adapts to lesion motion caused by organ movement (real time lesion tracking) |
|
Yes |
N/A |
No |
| |
Yes |
N/A |
Varian Trilogy® uses respiratory gating but does not track with radiosurgical precision – Other systems do not adapt to breathing |
