Technology | January 12, 2012

RayStation 2.5 Treatment Planning System Released

January 12, 2012 — RaySearch Laboratories AB announced that version 2.5 of its RayStation treatment planning system has been released for clinical use in Europe and the United States, and is pending regulatory approval in Canada. The new version includes a wide range of new features and improvements.

RayStation 2.5 includes all of RaySearch’s optimization algorithms for volumetric-modulated arc therapy (VMAT), intensity-modulated radiation therapy (IMRT) and 3-D conformal radiation therapy (CRT) alongside a comprehensive set of tools for CRT planning, meaning that the system can be used clinically for treatment planning of all various modalities of photon therapy. RayStation 2.5 also has full support for combining these techniques in the same treatment. In addition, the new version includes improvements of RaySearch’s multi-criteria optimization (MCO) solution for IMRT. This highly intuitive tool lets the clinician evaluate the impact of changing different treatment priorities in real-time, which has a large potential to speed up the time-consuming treatment planning optimization process. The MCO solution has been developed in collaboration with Massachusetts General Hospital in Boston, Mass.

From the start, RayStation was designed to handle 4-D adaptive radiation therapy and the new release includes groundbreaking features in this field. Using advanced deformable registration algorithms RayStation 2.5 allows the users to perform dose-tracking. This offers the possibility to perform accurate dose accumulation of any delivered or planned dose to any patient geometry while using any combination of computed tomography (CT), magnetic resonance (MR), positron emission tomography (PET) and 4-D CT data sets. RayStation is the first treatment planning system that lets the clinicians monitor the impact of a changing patient geometry as the treatment progresses, and easily adjust the treatment in the same system. The dose-tracking functionality was developed in collaboration with Princess Margaret Hospital in Toronto, Canada, and is available for installation in Europe but is pending regulatory clearance in the United States and Canada.

In addition to the new features, RayStation 2.5 includes major improvements and performance enhancements that further facilitate and speed up the treatment planning process. For example, the collapsed cone clinical dose engine has been re-implemented to improve speed, and the digital imaging and communications in medicine (DICOM) capabilities have been further improved. Examples in the usability area include extensive use of templates throughout the system, unlimited undo functionality and keyboard shortcuts expected in modern software.

“We are very proud that we now can offer the first complete version of RayStation. The system is now ready to be the workhorse for all photon treatments for all types of clinics, from smaller ones to large university hospitals with very advanced needs”, says Johan Löf, CEO of RaySearch. “We have a long-standing reputation of excellence in the field of optimization and firmly believe that we have now taken the lead in the field of adaptive therapy as well.”

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