News | Proton Therapy | February 16, 2016

Mevion S250 Proton Therapy System Comes to Nation's Capital

Mevion proton accelerator arrives at Medstar Georgetown; one of multiple Mevion sites to achieve installation milestones

Mevion S250, proton therapy, Medstar Georgetown installation, Washington D.C.

February 16, 2016 – A superconducting synchrocyclotron proton accelerator was delivered Valentine’s Day weekend to MedStar Georgetown University Hospital. The accelerator, which will become the core of the hospital’s Mevion S250 proton therapy system, was developed and manufactured in the United States and is one of only eight in existence.

When installation is complete, cancer patients in the Washington, D.C. area will gain access to proton therapy — an advanced form of radiation treatment that targets tumors precisely, while sparing much of the surrounding healthy tissue. Because of its accuracy, proton therapy is ideal for treating pediatric patients, as well as adults with cancers in or near sensitive locations, such as the heart, lungs, brain, eye or spinal cord.

Conventional proton therapy systems can cost over $200 million to construct and are typically the size of a football field. The Mevion S250 delivers proton therapy for up to 80 percent less cost and 90 percent less space. Mevion systems also require up to 75 percent fewer staff and use up to 90 percent less energy than other proton systems. Furthermore, Mevion says its proton systems have an industry leading ramp-up time, throughput capabilities and uptime.

Installation of the system at MedStar Georgetown will take approximately 10 months. The system will then undergo proton beam tuning to meet the precise clinical requirements for patient treatments. The first proton therapy patient is expected to be treated at MedStar Georgetown in early 2017.

The Washington, D.C. installation begins as Ackerman Cancer Center (ACC) in Jacksonville, Fla., breaks ground on the construction of a radiation vault for its second Mevion S250 Series system. ACC will be installing a Mevion S250i with Hyperscan pencil beam scanning technology.

The first system opened last April, and quickly achieved the fastest per-room ramp-up in the history of proton therapy. The installation is expected to be completed in 2017.

Meanwhile, the Mevion S250 under installation at the University of Florida (UF) Health Cancer Center – Orlando Health, in Orlando, Fla., has also achieved a major milestone. It has completed its rigorous acceptance testing and is now entering the clinical commissioning phase. Clinical commissioning is the final step before the first patient is treated.

During an intensive seven days of acceptance testing, the system in Orlando met or exceeded all specifications. Its operational control has been officially transitioned to the physics and radiation oncology proton teams at UF Health Cancer Center. It is expected to begin treating patients in a few months.

For more information: www.mevion.com

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