ViewRAY MRIdian

Discover MRIdian®

After six years of clinical use, MRIdian has treated more than 9,100 patients with more than 14,200 adaptive treatments.

By delivering accurate, precise and personalized cancer treatment, MRIdian is changing the radiotherapy paradigm through clinical, strategic, and economic value – one ablative dose at a time.


MRIdian is the only radiotherapy solution that can see and track soft tissue and tumors in real time.

MRIdian’s SmartVISION delivers high-definition, diagnostic-quality imaging designed specifically to maintain high-fidelity beam delivery while virtually eliminating the risks of skin toxicities, trapped or distorted dose and other concerns that may occur when high magnetic fields interact with radiation beams.


MRIdian shapes the dose to fit the day. It’s the only MR solution that enables integrated adaptive treatment for on-table reoptimization of the daily treatment plan.

MRIdian captures 8 frames per second, leveraging high-contrast anatomical detail to rapidly reshape dose delivery based on the current position of both the tumor and adjacent critical structures – all while the patient is in the treatment position.


MRIdian knows when to strike, visualizing the tumor’s edges and surrounding organ position in real time.

It’s the only RT solution with automated beam gating for precise and accurate dosing. When the tumor moves, the beam stops. Clinicians can shrink margins with confidence while escalating dose and reducing fractions.


Able to fit within almost any existing standard linear accelerator vault, MRIdian’s compact SmartSITE footprint addresses common physical space limitations and avoids the excessive delays, interruptions, and costs necessary to remove walls or build custom, large-scale vaults.

Clinically Proven

The MRIdian solution is enabling clinicians to treat more indications than is typically achievable on conventional radiation technology. With over 150 clinical publications, including 95 peer reviewed publications, MRidian is setting new standards in the delivery of radiation therapy. For more information please see the ViewRay Bibliography.