The Purpose of this Center is to provide a complete range of services for the diagnosis, and treatment with non-invasive proton beam radiosurgery and fractionated radiosurgery for brain and spinal tumors and arteriovenous malformations. Patients may be referred for consultation only, care in partnership with referring physician, or complete management

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Bragg Peak Proton Beam Radiosurgery Unit

The Proton Beam Unit was founded in 1962 and has the largest experience with stereotactic radiosurgery of any center in the United States. Proton beam offers certain theoretical advantages over other modalities of stereotactic radiosurgery (i.e. gamma knife and linear accelerators) because it makes use of the quantum wave properties of protons to reduces doses to surrounding tissue beyond the target to a theoretical minimum of zero. In practice, the proton facility offers advantages for the treatment of unusually shaped brain tumors and arteriovenous malformations. The homogeneous doses delivered also makes fractionated therapy possible. Proton beam radiosurgery also has the ability to treat tumors outside of the cranial cavity. These properties make it the ideal post-resection therapy for many chordomas and certain chondrosarcomas of the spine and skull base as well as an excellent mode of therapy for many other types of tumors.

HCL: The Harvard Cyclotron Laboratory (HCL) has now closed. The 'Particles Newsletters' have been transfered to the MGH PTCOG web and the main PSI-PTCOG system.

NPTC: Information, proton radiosurgery treatments and support services have been transfered to the new The Northeast Proton Therapy Center (NPTC). Located on the main hospital campus of the Massachusetts General Hospital (MGH), the NPTC represents the forefront of technological advancement in radiation therapy. The construction of the facility was jointly funded by the hospital and the National Cancer Institute to meet the increasing medical demand for high precision radiation therapy provided by proton therapy. The program builds on more than forty years of pioneering work and experience gained by the physicians, physicists, and clinical support personnel at Harvard University's Cyclotron Laboratory where more than nine thousand patients were treated with proton therapy from 1961 to it's closing in 2002.

 

Proton Radiosurgery Brochure [217k pdf]

NPTC Brochure [2.4 MB pdf]

Selected Publications

• Chapman PH, Tarbell: Proton beam therapy. In: Pediatric Neurosurgery. Surgery of the Developing Nervous System, 4th ed. Ed: McLone DG: WB Saunders: Philadelphia, pp. 1255-1262, 2001.
• Loeffler JS, Singer RJ, Chapman PH, Ogilvy CS: Proton-beam radiation therapy. In: LINAC and Gamma Knife Radiosurgery. Ed: Germano IM. The American Association of Neurological Surgeons: Park Ridge, IL, pp. 71-74, 2000.
• Harsh G, Loeffler JS, Thornton A, Smith A, Bussiere M, Chapman PH: Stereotactic Proton Radiosurgery. Neurosurg Clin N Am 1999; 10:243-256.
• Tatter SB, Butler WE, Chapman PH. Technical and clinical aspects of proton-beam stereotactic radiosurgery. In: Textbook of Stereotactic and functional Neurosurgery. Eds: Gildenberg PL, Tasker RR. McGraw-Hill, New York pp. 705-710, 1998.
• Serago CF, Thornton AF, Urie MM, Chapman P, Verhey L, Rosenthal SJ, Gall KP, Niemierko A: Comparison of proton and x-ray conformal dose distributions for radiosurgery applications. Med Phys 22:2111-16, 1995.
• Butler WE, Ogilvy CS, Chapman PH, Verhy L , Zervas NT. "Stereotactic alignment for Bragg peak radiosurgery." In Radiosurgery: Baseline and Trends, ed. L. Steiner. 85-91. New York: Raven Press, 1992.
• Chapman PH, Ogilvy CS , Butler WE. "A new stereotactic alignment system for charged-particle radiosurgery at the Harvard Cyclotron Laboratory, Boston." In Stereotactic Radiosurgery, ed. Eben Alexander III, Jay S. Loeffler, and L. Dade Lunsford. 105-108. New York: McGraw-Hill, 1993.
• De Salles AA, Asfora WT, Abe M, Kjellberg RN: Transposition of target information from the magnetic resonance and computed tomography scan images to conventional X-ray stereotactic space. Applied Neurophysiology 50: 23-32, 1987.
• Gall KP, Verhey LJ, Wagner M: Computer-assisted positioning of radiotherapy patients using implanted radiopaque fiducials. Medical Physics 20: 1153-9, 1993.
• Kjellberg RN, Hanamura T, Davis KR, Lyons SL , Adams RD: Bragg-peak proton-beam therapy for arteriovenous malformations of the brain. New England Journal of Medicine 309: 269-74, 1983.
• Kjellberg RN, Shintani A, Frantz AG, Kliman B: Proton-beam therapy in acromegaly. New England Journal of Medicine 278: 689-95, 1968.
• Urie MM, Fullerton B, Tatsuzaki H, Birnbaum S, Suit HD, Convery K, Skates , Goitein M: A dose response analysis of injury to cranial nerves and/or nuclei following proton beam radiation therapy. International Journal of Radiation Oncology, Biology, Physics 23: 27-39, 1992.

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