Quality assurance device developer Modus QA has released an updated version of its Quasar MRID3D phantom for performing quality assurance for MR-guided radiation therapy.
The new version of Quasar MRID3D offers faster isocenter detection, improved fiducial markers, alignment crosshairs, and additional visualization tools, according to the company. The phantom's hollow twin-cylinder wall enclosure now contains 1,502 fiducial markers, with six larger central reference fiducials for use when signal-to-noise ratios are low or when distortion is high.
Quasar MRID3D uses a 3D DICOM viewer with a region-of-interest selector, which gives users the ability to update charts and graphs in real-time to gain further insights into quality assurance. In addition, the phantom's analysis software enables users to perform calculations and execute algorithms to calculate phantom boundary distortion vector field, volumetric 3D distortion vector field, and B0 distortion versus gradient distortion.
