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Aurora RT™

Works-in-Progress   Not Currently for Sale

Aurora RT™ is an integrated medical linear accelerator and MR Imager for precise treatment set-up and for simultaneous treatment with soft-tissue imaging.   This device uses a unique patented design which almost totally eliminates the interference between the Linac and the MR.  Specifically, the magnetic field of the MR unit is provided by a cryogen free bi-planar magnet which rotates.  The linac is oriented to be parallel to the magnetic field of the MR unit.  The radiation beam is directed through the center of the coils along their common axis, and the entire system rotates together.aurora_clinical-transparent

Advantages of MR Guidance

Prostate X-ray CBCT Image

Typical Prostate X-ray CBCT Image

MR imaging is well known for its exquisite soft tissue contrast. State of the art linear accelerators have Cone Beam CT (CBCT) image guidance, which suffers from low contrast, and CT images cannot be captured concurrently with the beam delivery. The Aurora RT™ combines high quality MR images with a 6 MV linear accelerator. The machine is designed to provide excellent images prior to treatment for accurate patient alignment, as well as real time MR imaging during beam delivery to allow advance gating or tumour tracking features. These also make the Aurora RT™ perfectly suited for adaptive radiotherapy.

Prostate 0.5 T MR Image

Typical Aurora RT™ Prostate 0.5 T MR Image

Technical Specifications

Linac Energy6 MV
MultiLeaf Collimator (MLC)120 Leaves (standard, micro)
MR0.5T
Patient Opening110 cm W x 60 cm H
Linac_MR ConfigurationAligned - Rotate Together
MR PositionRotates 360 degrees
Beam-OrientationParallel to Magnetic Field (minimal dosimetric perturbation)
Bunker and Maze SizeStandard for Linacs (installation through maze)
MR Cryogens and VentingNone Required
Beam ModulationIMRT, VMAT
Soft-tissue Imaging RateFour images per sec
Treatment PlanningReal-time Adaptive