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In Loving Memory of My Beautiful Son


Born 21/9/1991 Passed On 29/9/2008


Michael in America January 2008


What is the CyberKnife® System?

The CyberKnife® Robotic Radiosurgery System is a viable, non-invasive alternative to surgery for the treatment of tumors

anywhere in the body. The treatment – which delivers high doses of radiation to tumors with extreme accuracy – offers new

hope to patients who have inoperable or surgically complex tumors, or who may be looking for an alternative to surgery.

The CyberKnife System uses image-guidance and computer controlled robotics to deliver multiple beams of high-energy

radiation to the tumor from virtually any direction. Designed to treat tumors anywhere in the body with sub-millimeter accuracy,

the CyberKnife System tracks the tumor’s position, detects any tumor or patient movement and automatically corrects the

treatment delivery. This outpatient procedure does not require anesthesia or invasive stabilizing frames. Most patients experience

 minimal recovery time and can return to normal activities almost immediately.

CyberKnife patient benefits:

  • Pain-free
  • Non-invasive
  • No anesthesia required
  • Outpatient procedure
  • No recovery time
  • Immediate return to normal activity
  • No invasive head or body frame
  • No breath holding during treatment
  • Fiducial free* - no implanted markers

(*for most procedures)


Cyberknife, Cancer Surgery Without Cutting, For Inoperable Tumours


Australian Dept Of Health Study, 2004



Today Tonight

Cyberknife Youtube

We Must Cut

 CancerCyberknife Locations Around The World

Cyberknife Centres

Cyberknife San Diego


Mount Sinai Hospital Cyberknife Treatments and Virtual Tour

Sinai Hospital was the first Maryland hospital to offer CyberKnife®.

The CyberKnife® Stereotactic Radiosurgery system is a computer-guided, linear accelerator mounted on a robotic arm. This noninvasive outpatient treatment enables doctors to treat multiple sites without making a single incision or immobilizing the patient in a stereotactic head frame. In fact, tumors previously thought to be inoperable can now be treated using the CyberKnife®. The level of accuracy achieved by the system allows for higher doses of radiation, which provide greater potential for killing tumors and curing the disease.

The CyberKnife® has many advantages over its predecessors. The maneuverability of the robotic arm makes treatment of irregularly shaped tumors possible and more effective.

Stereotactic radiosurgery is neither true radiation nor true surgery; it is a hybrid. The surgeon is wielding a mouse, rather than a scalpel, conducting virtual surgery on a tumor that, in many cases, could not be removed with actual surgery.

While surgical removal of many tumors may be preferred, depending on the patient’s age, medical history, the risks associated with surgery and the location of the tumor, the CyberKnife® can now be considered.

The CyberKnife® features two "eyes" to track minute changes in patient position during treatment. The eyes are two X-ray cameras positioned on either side of the treatment table that continuously monitor patient movement in three dimensions. Through its tracking system, the CyberKnife® detects even slight movements, thus allowing it to achieve extreme accuracy in dose delivery. Because of its great precision, the total treatment can be administered in as few as one treatment, whereas conventional radiation may require as many as 30 treatment sessions.

The CyberKnife® offers the most amazing form of true artificial intelligence. The technology is truly stunning, and the results have been spectacular for those patients who were not good candidates for surgery, particularly those with brain, spine or lung tumors.

Prior to the radiosurgery procedure, physicians gather data about a patient’s actual anatomy and the size, shape and location of the lesion from computed tomography (CT) or magnetic resonance imaging (MRI) scans. Instead of a head frame, a foam mold of the patient is used to immobilize the patient during treatment. Once a frame of reference for the patient and the lesion is determined, a surgeon and a radiation oncologist develop a computer-generated, three-dimensional treatment plan from which to direct the CyberKnife®’s rays to a certain depth of tissue.

For standard radiation treatment planning, doctors look at the tumor, the radiation dose and the desired solution. With CyberKnife®, inverse planning is used. The tumor is looked at, the normal structures around the tumor are looked at and then limits on the dosage are calculated to avoid damaging the normal structures.

During radiosurgery, a patient rests comfortably on the treatment couch without anesthesia while the robotic arm delivers a concentrated radiation dose to the tumor. Total treatment lasts from 30 minutes to one-and-a-half hours and requires very little recovery time. If necessary, treatments with the CyberKnife® can be given in fractions.

CyberKnife® is currently in use in approximately 120 locations worldwide. The potential of this technology is just being explored. It is currently used for both benign and malignant conditions in the brain, spine, lung, pancreas, liver and prostate. Developing applications are for abdominal and breast tumors


UNC Cyberknife Centre FAQ

Results from a clinical study of CyberKnife ? radiosurgery for locally advanced pancreatic cancer







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