News Release

Breakthrough technology offers new treatment for patients with hard-to-reach tumors

State of the art cancer treatment saves new mom's eyesight

Business Announcement


Enormous Machine Beams Protons into Tiny Tumor Cells

video: A person is diagnosed with a brain? Or spinal cord tumor about every six minutes in the US for many, the tumors are inoperable because they grow too close to critical parts of the body. But remarkable technology is giving those patients new hope -- a fascinating approach called proton therapy. view more 

Credit: Orlando Health

Orlando, Fla - An enormous high tech machine is providing new hope to patients across the country with inoperable tumors. Proton therapy is a precise radiation technique that reduces the side effects often accompanied by traditional treatment options. Thanks to this remarkable technology, a new proton therapy center at UF Health Cancer Center - Orlando Health is saving the eyesight of a new mother who was diagnosed with a tumor behind her eye during her second trimester of pregnancy.

Rhea Birusingh, 37, began experiencing blurry vision and thought it was due to her pregnancy. But when she went to see her opthamologist, she was diagnosed with a benign brain tumor located behind her right eye, which was feeding on the same hormones associated with her pregnancy. Because of the tumor's placement it was deemed inoperable, and without proton therapy, Rhea would face declining memory and loss of her eyesight.

"Unfortunately, even with just one scan, we knew the tumor was in the worst location possible," said Birusingh.

In order to treat the tumor, Rhea was induced at 34 weeks, and became the first patient to be treated with proton beam therapy at the new Marjorie and Leonard Williams Center for Proton Therapy at Orlando Health. There, doctors used a massive, 3-story, 200,000 pound machine to direct a proton beam into an area of Rhea's brain less than a millimeter in diameter.

"This machine is extremely powerful and incredibly accurate," said Dr. Naren Ramakrishna, the director of proton therapy at UF Health Cancer Center - Orlando Health "Proton therapy allowed us to treat Rhea's tumor successfully while minimizing the dose to the very critical surrounding structures. In her case these structures included areas of the brain, the optic nerves and the pituitary gland."

Conventional radiation treatments rely on X-rays, which deposit energy as they make their way through the body - at the skin, on the way to the tumor, and then beyond the tumor. This means the areas surrounding the tumor are also being exposed to a significant amount of radiation.

But by using protons doctors have a big advantage.

"With proton treatment, we're using a fundamentally different form of energy," said Dr. Ramakrishna. "So, when these positively charged particles enter, they deposit almost all of their dose right inside the tumor. There's actually little or no dose going beyond the tumor to the surrounding structures, which can be vital."

Proton therapy is especially beneficial for both adult and pediatric patients with tumors near critical structures like the spine, brain and optic nerve -- which can be affected by traditional radiation therapy. By using proton therapy radiation dose can be tailored more precisely than with X-rays, and has a better chance of preserving those critical surrounding areas.

"Proton treatment allows a great clinical benefit in protecting the normal areas surrounding the tumor," says Dr. Ramakrishna. "It also reduces the incidence of stroke and radiation-induced secondary cancers."

The 15,000 square foot Marjorie and Leonard Williams Center for Proton Therapy at Orlando Health took four years to build and is expected to treat as many as 20 patients a day who have cancers of the brain, spine, prostate, lung, breast, gastrointestinal tract, head and neck, as well as pediatric cancers.


B-ROLL, SOUND BITES, WEB ELEMENTS & HI-RES STILL PHOTOS - Including HD video available for free/unrestricted use by the news media:

Courtesy: UF Health Cancer Center - Orlando Health

For assistance in downloading, or if you have any questions, contact: or call: 614.932.9950 or 614.477.2719.

About Orlando Health

Orlando Health is a $2.1 billion not-for-profit health care organization and a community-based network of physician practices, hospitals, and outpatient care centers throughout Central Florida. The organization is home to the area's only Level One Trauma Centers for adults and pediatrics and is a statutory teaching hospital system that offers both specialty and community hospitals.

Nearly 3,000 physicians have privileges at Orlando Health, which is also one of the area's largest employers with more than 15,000 employees who serve nearly 2 million Central Florida residents and more than 4,500 international patients annually. Additionally, Orlando Health provides more than $270 million in support of community health needs. More information can be found at

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.