SPIRIT is a cutting-edge MRI Quality Assurance (QA) phantom designed to streamline scanner validation, quantitative MRI (qMRI) accuracy checks, and spatial distortion assessments.
Developed with input from leading MRI physicists and engineered for seamless integration, SPIRIT is the essential tool for medical institutions, research facilities, and imaging centers.
SPIRIT combines NIST-calibrated, SI-traceable T1, T2, and ADC vials with geometrical features, enabling comprehensive MRI scanner QA.
Equipped with precision-crossed wedges at the centre of the phantom, SPIRIT provides highly accurate slice profile analysis.
A spherical design ensures superior shimming, minimizing field inhomogeneities for consistent and reliable results.
Identical T1/T2 values are distributed across multiple locations, allowing easy detection of B1 and B0 field variations.
The phantom chamber contains a liquid formulation for optimal background signal, magnetic susceptibility matching, and coil loading.
Using 52 MR visible fiducials arranged in a rectilinear Cartesian grid, SPIRIT enables precise spatial distortion analysis.
A 0.5 to 3.0 mm resolution grid, repeated in multiple orientations, assesses the ability of image acquisitions to resolve fine details.
Designed for universal use, SPIRIT fits into most MRI manufacturers head coils and integrates into standard MRI workflows.
A dedicated holder ensures consistent positioning within MRI head coils for repeatable, high-precision testing.
Includes advanced software for automated slice profile analysis, spatial distortion mapping, and signal level extraction (WIP)
191 mm
Filled with a standard configuration of SI Traceable diffusion and relaxometry vials
MnCl2 Flood Fill
Ethylene Glycol NMR thermometers
52 fiducial nodes of 8 mm diameter regularly spaced on a 34 mm rectilinear grid
Slice wedges adhering to NEMA MS 5-2018 at the centre of the Phantom
Resolution grids: 5 groups of resolution quantification with features of 0.5 mm diameter to 3 mm diameter positioned as such:
Shell and structural components: Polycarbonate
Plug: GF Nylon
Seals: FKM and silicone
Fiducial grid: Accura ClearVue
4x 10ml, 100×16 mm polypropylene vials
16 x 4ml, 41x16 mm polypropylene vials
Foam-padded box for storage and transport
Torque screwdriver
250 ml bottle of MnCL2-based flood fill
Spare part kit (additional fixtures/fittings)
Phantom holder and positioning kit for reproducible alignment in MRI Coils
