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Game changing cancer treatment in PA

The device uses MRI to locate, target, and track the position and shape of tumors while radiation is delivered.

YORK, Pa. — A new cancer treatment system in use at Penn State Health Milton S. Hershey Medical Center can locate, target, and track the position and shape of tumors while radiation is delivered. The end result is more effective radiation doses that minimize incidental exposure to surrounding organs.

The MRIdian Radiation Therapy System uses magnetic resonance imaging, or MRI, together with radiotherapy to treat tumors and cancers throughout the body. The MRI is able to capture several images each second, showing clinicians what is happening inside the body in real time as they use radiotherapy to attack the tumor.

“When a person breathes, swallows or digests food, their internal organs move. Even the slightest movement can affect the position of a tumor,” Dr. Rodney Ellis, chair of the Department of Radiation Oncology at Penn State Cancer Institute, said. “MRI-guided radiation therapy allows us to hit a moving target and provide better care for the patient, preserving healthy tissue.”

While the radiation beam is on, the MRIdian Radiation Therapy System captures a constant stream of soft-tissue images with its MRI, acting on them nearly instantly. If the tumor or a critical structure – such as a nearby organ – moves beyond a specific boundary, the radiation beam automatically pauses. When the target moves back into the predefined boundary, treatment automatically resumes.

Ellis said the procedure is especially effective against prostate cancer, as it means fewer radiation treatments for patients, as well as fewer side effects and shorter recovery times.

The team of highly-trained cancer treatment experts at the Milton S. Hershey Medical Center also plans to target cancers of the liver, pancreas and lungs with the MRIdian Radiation Therapy System.

Each patient will have an individualized treatment plan and can expect anywhere from a few days to several weeks of treatment, depending on the size, type and location of their tumor, as well as other factors.

Penn State Health Milton S. Hershey Medical Center is one of just 17 locations in the United States to use MRIdian’s MRI-guided radiation therapy.

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