Unique MRI-Guided Radiation Therapy System Showcased at ESTRO 2015

The system enables clinicians to observe, assess, and personalize radiation therapy treatments, and provides high soft-tissue contrast, on-table adaptive treatments, MRI alignment, and real-time MRI tracking.

The MRIdian system combines MRI and radiation therapy delivery to provide high-quality pre-treatment images and continuous soft-tissue imaging, in real-time, for the duration of the treatment, while the beam is on. This enables clinicians to clearly see the tumor target and follow where the radiation dose is being delivered, and ensures that the radiation beam does not miss the tumor's edges, or irradiate healthy tissue. Many studies have shown that soft-tissue motion can shift the positions of the tumor and nearby organs.

The system also has built-in software for treatment planning, performance, safety, accuracy, and Quality Assurance (QA). The software’s Graphical User Interface (GUI) is based on clinical workflows to increase usability, and includes advanced contouring tools and auto-contouring.

Chris A. Raanes, ViewRay president and CEO, said, “The ability to adapt treatment in real-time to changes and movement in a patient's anatomy is a significant step in radiation oncology and is being made possible today with the MRIdian System. We're excited that our users can share their experience with this year's ESTRO attendees who may be looking to integrate MR-guidance and adaptive treatment into their patient offerings."

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