The Magphan® RT’s modular design, when filled with solution, keeps all individual modules under 12 kg, enabling the phantom to be handled by a single person without special equipment. This design not only allows for easy handling of the phantom but also facilitates future system expansion with additional measurement modules.
The system measures the following imaging parameters:
The locations of several hundred 1cm sphere fiducials are measured across the volume of the phantom. The measured locations are compared to known locations to generate a 3D distortion map. The phantom modules are designed to fit together precisely and the analysis accounts for any residual positional offsets between components. Beyond the distortion map the system tracks several key indicators such as maximum and mean high 10% distortion along the cardinal axes. Analysis of optimized gradient rescaling factors for different objectives is included
Uniformity can be a useful indicator for common failure mechanisms in subsystems like the RF coil element. The uniformity is measured at several hundred uniform spherical sub volumes throughout the phantom. The mean signal, normalized standard deviation and spread are calculated.
We provide slice thickness ramps to provide objective slice thickness measurements on all three orthogonal axes. The automated routine provides higher quality slice thickness measurements versus manual measurements on actual clinical sequences.
The Magphan® RT system measures the point spread function (PSF) and the modulation transfer function from circular features in the phantom all three measurement planes.
Signal-to-noise ratio is measured at several places throughout the phantom. Longitudinal tracking of SNR can give early warning of component degradation or failure.
The phantom contains markers for alignment with positioning lasers. The analysis provides data on translation and rotation of the phantom in all three cardinal axes.
The included Magphan® RT analysis service is hosted by Image Owl Total QA® and is included in the purchase price for 2 years. The service provides the following benefits:
Completely Automated: Simply upload the complete DICOM scan series of the phantom. The service automatically identifies the features, performs the analysis and prepares the report. Analysis results are saved in the database for longitudinal studies, process control and inter-machine comparisons.
No Installation or Manual Updates: The service is accessible from any web enabled device and requires no local installation.. Updates to the service are automatic and require no user actions.
API Available: The Total QA® system includes an API that allows users to extend the system with custom analyses or interfaces.
Reporting, Trending and Data Analysis Included: The Total QA system provides an informative report, tracks all parameters over time and provides comparative analysis tools between machines.
Upgradeable to full Total QA system: The Magphan® RT analysis can be seamlessly integrated into a full Total QA system for managing all of a facility’s RT QA data.