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Technology Comparison

 

CyberKnife®

Gamma Knife®

Other Linac Systems
(i.e. Elekta Synergy®, Novalis®, TomoTherapy®)

Dedicated to Radiosurgery

Yes

Yes

No

Anatomical treatment areas

Brain, Spine, and Body

Brain

Brain
(Some systems allow for
other treatment sites)

Rigid brain or body frame required

No

Yes

Yes

Capable of dividing dose between multiple treatments to preserve health tissue

Yes

No

Yes

Adapts to tumor motion throughout treatment

Yes

N/A

No

Adapts for breath motion

Yes

N/A

Some systems

“The CyberKnife® System achieves the same accuracy as frame-based radiosurgery. But, it uses image-guided robotics to avoid the need for a frame,” said Walter M. Sahijdak, M.D., radiation oncology specialist at SJMHS. “This approach is not only less invasive for treatments of head tumors, but has also made radiosurgery possible throughout the body. The key is that CyberKnife® requires no frame.”

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