| |
CyberKnife® |
Gamma Knife® |
Other Linac Systems (Elekta Synergy®, Novalis®, Varian Trilogy®, TomoTherapy®) |
| Radiosurgery Dedicated |
Yes |
Yes |
No |
| Anatomic Area treatable with radiosurgical precision |
Whole body |
Brain/Skull base(minus extreme lateral) |
Varies |
| IMRT dosimetry Method |
Yes |
No |
Yes |
| IGRT Set-up Visualization |
Yes |
No |
Yes |
| Does “Conventional” Radiotherapy and/or IMRT |
No |
No |
Yes |
| Rigid Brain or Body Frame required for radiosurgical accuracy |
No |
Yes |
Yes |
| Capable of conformally and homogeneously treating a non-spherical target volume, Greater than 3.5cm |
Yes |
No |
Yes |
| Capable of fractionated radiosurgery to better preserve critical adjacent tissue |
Yes |
No |
Yes |
| Tracks patient-induced motion with radiosurgical precision (Less than 1mm) |
Yes |
N/A |
Varies by method and manufacturer |
| Tracks spine motion with radiosurgical precision (Less than 1mm) |
Yes |
N/A |
No |
| Tracks organ induced target volume motion with radiosurgical precision (Less than 1mm) |
Yes |
N/A |
No |
| Tracks respiration induced organ motion with radiosurgical precision (Less than 1.5mm) |
Yes |
N/A |
No |
| Capable of real-time sub-millimeter translational and rotational beam adaptation to target volume motion |
Yes |
N/A |
No |
