Target Pituitary

Radiosurgery

Proton beam surgery is a highly sophisticated form of radiosurgery. The beam of proton radiation can be very precisely aimed at a tumor with little harm to the surrounding healthy tissues.

The Proton Stereotactic Radiosurgery Center provides a complete range of services for the diagnosis and non-invasive proton beam radiosurgery and fractionated radiosurgery treatment for brain and neuroendocrine tumors.


Article: Outcomes of Proton Therapy for Patients With Functional Pituitary Adenomas

Dr Paul H. Chapman - Neurosurgical Director of the Proton Beam Radiosurgery Program


Precise Treatment of Complex Tumors

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Proton Radiosurgery

Proton beam surgery is a highly sophisticated form of radiosurgery. The beam of proton radiation can be very precisely aimed at a tumor with little harm to the surrounding healthy tissues.

Traditional radiosurgery using x-ray or gamma radiation can be highly effective for small, spherical lesions. For larger, more irregularly shaped lesions, however, it becomes more difficult to deliver a uniform dose of radiation to the target without affecting outlying tissue. In these cases, proton radiation has significant advantages:

  • Delivers most of its radiation into the intended target
  • Beams conform to the shape of the lesion
  • Normal tissue outside the target receives little or no radiation

We use radiosurgery to supplement traditional surgery or in some cases replace it entirely, depending on the nature and location of the abnormality.


Treating People

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Careful Planning for Better Results

To ensure complete and accurate care, the general pre-treatment process follows a similar course.

  • Prior to proton treatment the patient’s medical history, including imaging studies, are reviewed to ensure that proton therapy is appropriate.
  • It may be necessary to obtain additional tests to update the medical record.
  • Patients accepted for proton therapy undergo a simulation process to enable proper planning prior to treatment. This process involves making an immobilization device to help the patient maintain a steady body position during the proton treatment. Using the custom immobilization device, treatment planning X-ray images are obtained to help delineate the lesion(s) or target(s) and map their position within the body.
  • When patients come for their proton treatments, images are taken using state-of-the-art X-ray or ultra-sound technology. These pre-treatment images are compared to the planning images to ensure high precision alignment

Treating People, not just Diseases

All of our surgeons, nurses and radiation therapists take pride in knowing their patients and families.

Our nurses educate patients and their families and provide important emotional support. In addition, we offer comprehensive support services on Mass General's main campus:


Unmatched Experience

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Radiosurgery Pioneers

Producing a proton beam requires a cyclotron, a machine that accelerates subatomic particles to nearly the speed of light. The Harvard Cyclotron Laboratory, one of the world's first such facilities, was built in the 1940s for research in nuclear physics.

In the early 1960s, researchers from Mass General and the Massachusetts Eye and Ear Infirmary (MEEI) began working with the cyclotron staff to treat patients using proton beam therapy. Its first application was for benign tumors of the pituitary gland.

The Proton Beam Unit opened in its current location on the main campus of Mass General in 1991.

Today, our surgeons, physician-scientists and physicists continue to investigate and invent next-generation radiation therapies to improve care for our patients.

An Unmatched Level of Experience

Radiosurgery at Mass General is performed at the Francis Burr Proton Therapy Center, which is jointly funded by the hospital and the National Cancer Institute. The Proton Beam Unit was founded in 1962 and has the most experience with stereotactic radiosurgery of any center in the United States.

The Proton Therapy Center provides a complete range of services for the diagnosis and radiosurgical treatment of brain and spinal tumors. Patients may come to the center for:

  • Consultation
  • Care in partnership with referring physician
  • Complete treatment and management


Disclaimer About Medical Information: The information and reference materials contained herein is intended solely for the information of the reader. It should not be used for treatment purposes, but rather for discussion with the patient's own physician. All visitors to this and associated sites from the Neurosurgical Service at MGH agree to read and abide by the the complete terms of legal agreement found at the Neurosurgery "disclaimer & legal agreements."

Physicians' Pituitary Information Service - Physicians with questions may contact Dr Biller or Dr Klibanski at 617.726.3965 or 1.888.429.6863 or via e-mail at - pituitary.info@partners.org :: Research Studies

The Neuroendocrine and Pituitary Tumor Clinical Center
Massachusetts General Hospital
Zero Emerson Place, Suite 112, Boston, Massachusetts 02114
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