What Is CyberKnife?

CyberKnife® is an innovative, highly precise, noninvasive alternative to open surgery. The revolutionary technique uses a computer-guided robot arm to deliver radiation with sub-millimeter accuracy. This advanced treatment can target a point from thousands of angles, allowing radiation oncologists to treat difficult-to-reach tumors or unusually shaped masses.

Since CyberKnife is a form of stereotactic radiosurgery (surgery employing a precise radiation beam on 3 planes), this outpatient procedure is bloodless (no surgical incision is necessary) and doesn’t require anesthesia.

Using a linear accelerator to generate radiation beams, the CyberKnife system under experienced physicians’ guidance can treat tumors anywhere in the body.

What Conditions Does CyberKnife Treat?

Stereotactic radiosurgery provides noninvasive treatment for a variety of inoperable or surgically complex central nervous system (CNS) tumors, such as brain and spine tumors including:

  • acoustic neuromas — benign tumors on the nerve to the ear
  • gliomas — tumors that originate in the glial cells of the brain
  • metastases — cancer that spreads from one part of the body to another
  • meningiomas — usually benign, tumors that start from the meninges (a membrane covering the brain)
  • pituitary adenomas — benign tumor at the base of the brain
  • Schwannomas — an overproduction of Schwann cells that grow slowly around the nerve

CyberKnife can also be used to treat other conditions, often by ablating (surgically destroying) disorder-causing tissues:

  • arteriovenous malformations — a tangle of veins and arteries forming a vascular abnormality
  • temporal lobe epilepsy — epilepsy that originates in the temporal lobe of the brain
  • other types of epilepsy
  • trigeminal neuralgia — intense face pain, often caused pressure on the trigeminal nerve
  • tremors
  • unmanageable chronic pain conditions
  • certain obsessive-compulsive disorders

NSPC is one of the leading private practices of expert neurosurgeons and allied specialists in the NY region—including Long Island—with locations in Bethpage, Commack, Great Neck, Lake Success, New York City, Patchogue, Port Jefferson Station, Rockville Centre and West Islip.


Ramin Rak

M.D., F.A.A.N.S.


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