University of Wisconsin–Madison

ViewRay MRIdian Linac

Summary

The ViewRay MRIdian Linac is a radiation therapy system that provides continuous high-contrast imaging of soft tissue during treatment. This helps clinicians position the patient, adjust treatment and track patient motion for accurate treatment.

Technical Specifications

The ViewRay MRIdian Linac system combines a 0.35 Tesla MR scanner with a linear accelerator-based 6 megavolt photon beam. The MRIdian is the world’s only FDA-cleared delivery system to combine MR image guidance with a linear accelerator delivery platform. The MRIdian system delivers continuous high-contrast imaging of soft tissues to aid the treatment team in the precise alignment of targets and nearby organs and enables adaptive treatment planning using high-quality 3D MR imaging. The system features a double-focused multi-leaf collimator (MLC) with an effective projected leaf size around 4 mm. The MRIdian system is capable of delivering treatments correlated with the patient’s breathing motion.

Locations

The MRIdian Linac is located at University Hospital in Treatment Room E.

ViewRay Website

MRIdian Linac video