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Brain Surgery Without the Scalpel

Imagine undergoing brain surgery as an outpatient—with reduced pain, a brief recovery period, and no incision. The Southern California Regional Gamma Knife Center at San Antonio Community Hospital (SACH) is the only San Bernardino and Riverside County facility providing this effective treatment option for patients with brain disease.

The Southern California Regional Gamma Knife Center at SACH has been developed jointly by the hospital and US NeuroSurgical, Inc. (USN). USN, in conjunction with hospital partners, has been developing Gamma Knife Centers since 1993. We have drawn on that experience to establish a world class center, treating benign and malignant brain tumors, vascular malformations, trigeminal neuralgias, acoustic neuromas, and Parkinson’s disease.

Gamma Knife Surgery at San Antonio Community Hospital

For more than a century, San Antonio Community Hospital has served the Inland Empire with leading therapies and high standards of patient care. We provide comprehensive service across a full range of disciplines, with more than 2,000 staff members and 500 physicians.

Our cancer center provides radiation oncology services on-site, including intensity-modulated radiation therapy and brachytherapy, as well as medical and surgical oncology. We employ a multidisciplinary team approach for continuity of care, striving at all times to engage the mind, body, and spirit in holistic treatments that yield better results and a more rewarding experience.

The hospital’s radiation oncology suites were remodeled for a state-of-the-art Gamma Knife Perfexion™ suite in conjunction with the installation of the advanced 3-Tesla MRI imaging equipment by Phillips. A dedicated support staff provides unparalled patient service. The Southern California Regional Gamma Knife Center at SACH offers the most advanced treatment available today for tumors and disorders of the brain.

For more information about San Antonio Community Hosptial please go to

What is the Gamma Knife?

The Gamma Knife is an advanced brain surgery device that permits outpatient brain surgery with no incision, minimal discomfort, and a brief recovery. Developed in Sweden in the 1950s, the Gamma Knife has been in use in the United States for more than two decades, providing patients with a treatment option for brain disorders that were once only treatable by open skull surgery. Over half a million patients have been treated with Gamma Knife surgery. In fact, Gamma Knife is the only radiation therapy system specifically licensed by the FDA for irradiating brain metastases. With unsurpassed and proven clinical outcomes, the Gamma Knife is the gold standard in
cranial radiosurgery.

In Gamma Knife radiosurgery, a focused dose of radiation is used to stop and/or reduce the growth of abnormal tissue. The Gamma Knife radiation distorts the DNA mapping of the cells and renders them unable to divide. The 192 beams of radiation are focused on the abnormal tissue area, with the area of intersection conforming to the size and shape of the target. Each of the individual beams provides a relatively small, harmless dose of radiation. Only at the point where the narrow beams converge is the radiation at its most powerful, therefore preventing injury to surrounding healthy tissue. Gamma Knife treatments take place in a single day without an incision, allowing patients to quickly resume their normal activities.

Equipped with the most advanced radiosurgical device available, Leksell Gamma Knife® Perfexion™, the Southern California Regional Gamma Knife Center at SACH takes Gamma Knife radiosurgery one step further.

Leksell Gamma Knife Perfexion™ delivers the most efficient and precise radiosurgery treatment to date. With an expanded treatment area and enhanced accuracy, this sophisticated system allows clinicians to treat tumors that were unreachable using previous technology.

Gamma Knife in the News

Scott Hamilton spoke about his personal experience with Gamma Knife surgery in an interview with Katie Couric on NBC's Today Show. Choose a download speed below to watch the video.

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