RaySearch Laboratories announced this week that an additional eight proton therapy centers worldwide have purchased its RayStation treatment planning system.

The six orders received last month were from the Children’s Cancer Hospital Foundation in Cairo, Hospital Quirónsalud in Madrid, Mayo Clinic Hospital in Phoenix, ZON-PTC in the Netherlands, MedStar Georgetown University Hospital and the Johns Hopkins Medicine proton center at Sibley Memorial Hospital, both in Washington DC.

RayStation was also recently selected by Tata Memorial Center in Mumbai, which is one of India’s first proton therapy centers, and PLA General Hospital in Beijing. At these eight centers, RayStation will be used together with the IBA Proteus Plus and Proteus One systems, Mevion systems with HYPERSCAN and Hitachi ProBeat systems.

A total of 35 proton centers have purchased the system to date, which accounts for more than half of the existing proton centers around the world.

The centers will have the latest version of the technology, RayStation 6. In May, RaySearch introduced the Monte Carlo dose engine for proton pencil beam scanning plans for this version, which can be used in parallel with the existing pencil beam dose engine.

The Monte Carlo and pencil beam dose engines can both be used to calculate spot dose distributions as input for optimization, regardless of having patient-specific block apertures, and final dose distribution for plan approval.

RayStation 6 also leverages PBS apertures and 4D-CT optimization for proton and carbon ion planning. All of the purchases include both clinical and research licenses.

This system is ideal for researchers at academic centers. That’s because it can perform linear energy transfer and relative biological effectiveness calculations for proton and carbon PBS planning, interplay evaluation of machine delivery log files, PET-based range verification, proton and carbon planning on virtual cone-beam CT images, and small animal X-ray irradiator planning.

RayStation’s different clinical and research configurations will be on display at the American Association of Physicists in Medicine Annual Meeting in Denver later this month.

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