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CyberKnife System


CyberKnife® vs. Other Treatments

Boston Medical Center's CyberKnife treatment can be a more effective and less invasive alternative to both conventional radiation therapy and surgery. While it's important to consult with your doctor to determine the best course of treatment, almost any patient with a tumor treatable with radiation can benefit from what is considered to be one of the most advanced tumor treatments available today.

Treatment Type

Conventional Radiation Therapy

CyberKnife® Radiosurgery


Conventional radiation therapy administers a broad beam of low dose radiation from only a few directions, thus limiting how closely the tumor can be covered with radiation. In order to prevent the normal surrounding tissues from receiving too much daily radiation, many low doses of radiation must be administered over a longer period of time.

CyberKnife Radiosurgery delivers radiation beams that can be targeted from virtually any direction with sub-millimeter accuracy, while limiting the damage to surrounding healthy tissue. As a result a higher and more effective dose of radiation can be delivered to the tumor in fewer treatment sessions, which increases patient convenience.

Treatment Time

Usually 30 to 45 treatments over a period of six to eight weeks–each lasting 15 to 30 minutes in duration.

Each treatment generally lasts between one to three hours, ad the treatment course is typically completed in one to five visits.

Side Effects

May include fatigue, malaise, mouth and throat pain, nausea, diarrhea and skin irritation, depending on the site of treatment.

Fewer side effects when compared to conventional radiation techniques. (Your doctor can advise you of possible side effects based on your type of tumor and specific treatment pain.)
In addition, no invasive head or body frame is required, which enhances patient comfort.

What is the difference between CyberKnife and other radiosurgery systems, such as Gamma Knife?

Treatment Type

Other Radiosurgery Systems

CyberKnife® Radiosurgery

Patient Comfort

In Gamma Knife and Linac radiosurgery a rigid metal frame must be bolted to the skull to prevent patient movement. This can cause considerable discomfort and may limit the angles from which radiation can be delivered.

CyberKnife Radiosurgery does not require a head frame.


The Gamma Knife can only be used for tumors and conditions in the brain or head.

The CyberKnife can be used on nearly every part of the body.

Contact Us

Call: 617.638.6428
Email: cyberknifeinquiry@bmc.org

Treatment Location

Boston Medical Center
Radiation Oncology
Moakley Building
830 Harrison Avenue
Boston, MA 02118

Refer a Patient

Call: 800.841.4325

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