The Large Field MR Distortion Phantom 604-GS is designed to measure and correct geometric distortion in MRI images over a large field of view.
It accurately assesses the effects of magnetic field inhomogeneity (B₀), gradient non-linearity, and susceptibility artifacts on spatial fidelity.
Featuring a regular 3D grid structure with over 2100 intersection points, the 604-GS enables comprehensive distortion mapping in all directions (x, y, z). It is the gold standard tool for MRI system calibration, treatment planning validation, and 3D QA in radiotherapy and neuroimaging applications.
The durable PMMA acrylic body ensures mechanical and chemical stability of the filling liquid. External laser alignment markings simplify setup. Compatible with flat and curved patient tables, the 604-GS includes a transport harness, filling funnel, and protective case.
It is also compatible with Distortion Check software, providing automated analysis, distortion correction, and standardized QA reporting.
Specifications
- Type: large field MRI distortion phantom
- Material: acrylic (PMMA)
- Dimensions: diameter 330 mm × length 300 mm
- Weight (empty): 7.7 kg
- Weight (filled): approx. 28 kg
- Grid spacing: 20.3 mm (I-S), 20.5 mm (A-P), 21.5 mm (L-R)
- Control points: 2152 grid intersections
- Internal rod diameter: 3 mm
- Design: leak-proof, compatible with flat or curved tables
- Alignment: engraved laser cross markings
- Included accessories: filling funnel, plastic screws, transport harness, support tray, foam case, user manual
- Software: Distortion Check license (90 days or limited version)
Models
- 604-GS - Large Field MR Distortion Phantom 604-GS
