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Gamma Knife Stereotactic Radiosurgery

The Yale New Haven Gamma Knife is the only radiosurgery unit in Connecticut dedicated to the treatment of head and neck conditions.

The Principle

Stereotactic radiosurgery is the delivery of a high dose of highly focused radiation in a single session to treat specifically chosen intracranial targets. At Yale, this treatment is delivered using a Gamma Knife. Originally designed by Dr Lars Leksell in Sweden, this machine contains 192 cobalt-60 radiation sources arranged in a hemispherical array and housed in a heavily shielded unit. Using the Gamma Knife, radiation is precisely focused to deliver the high dose of radiation only to the designated target while sparing the surrounding tissues. Complex shaped lesions can be treated by combining varying-sized collimators with selected beam blocking and dose weighting using sophisticated computer planning software. This ensures that each patient's lesion(s) receive a tightly conformal "tailored" radiation treatment plan, while avoiding surrounding normal structures.

Gamma Knife Surgeons

  • Veronica Chiang, MD, FAANS


    Professor of Neurosurgery; Associate Vice Chair of Academic Affairs; Director, Stereotactic Radiosurgery; Director, Gamma Knife Center, YNHH; Director, Stereotactic Radiosurgery Fellowship

  • Jason Gerrard, MD, PhD, FAANS

    Assistant Professor of Neurosurgery and of Neuroscience; Chief, Functional Neurosurgery; Chief, Trauma Neurosurgery, YNHH

  • Murat Gunel, MD, FACS, FAHA, FAANS

    Nixdorff-German Professor of Neurosurgery and Professor of Genetics and of Neuroscience; Chair, Department of Neurosurgery; Chief, Neurosurgery, Yale New Haven Health System; Chair, Perioperative Executive Leadership Committee; Member, National Academy of Medicine; Co-Director, Yale Program on Neurogenetics

  • Jennifer Moliterno, MD, FAANS

    Associate Professor of Neurosurgery; Clinical Program Leader, Brain Tumor Center; Chief, Neurosurgical Oncology for Primary Brain Tumors

  • Sacit Bulent Omay, MD, FAANS

    Assistant Professor of Neurosurgery; Surgical Director of Yale Pituitary Program, Neurosurgery; Section Chief, NeuroTrauma, Neurosurgery

  • Joseph Piepmeier, MD, FAANS

    Nixdorff-German Professor Emeritus of Neurosurgery; Vice Chair of Academic Affairs, Neurosurgery; Chief, Brain Tumor Surgery