QUASAR™ MRI⁴ᴰ Motion Phantom

Modus QA

QUASAR™ MRI⁴ᴰ Motion Phantom


Quasar MRI⁴ᴰ is the world’s first MR-safe programmable motion phantom. Adapting for motion in Radiation Therapy requires advanced QA tools and the MRI⁴ᴰ enables you to develop, test and validate advanced 4D treatment delivery protocols on MR-sim and MR-Linacs. 

Interchangeable inserts are available for imaging, planning, targeting, dosimetry and delivery QA. The included software provides tools to create, import, edit and stream patient-specific respiratory waveforms.


MR Safe: Ferrous and artifact free 4D-MRI QA on systems up to 3T 

RF Shielded: Compact design enables operation within the magnet bore with no artefacts or RF noise 

Multimodality: MRI, CT, PET and LINAC compatible for MR4D vs CT4D, MR-PET and MRgRT 4D QA 

Connectivity: Control the phantom directly from the console or equipment room with included software

Waveforms: Import, create, edit and stream patient-specific or custom waveforms 

Adaptable Motion: Flexibility to move inserts with translation or with translation and rotation 

Interchangeable Inserts: Configurable inserts with optional targets to increase developing and testing capabilities

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