The QUASAR MRID 3D is an advanced 3D geometric distortion analysis system for MRI.
It measures, quantifies, and corrects spatial distortions across a large field of view and seamlessly integrates into MR-SIM and MR-LINAC QA workflows.
The phantom is prefilled with high-contrast T1 mineral oil requiring no maintenance, ensuring long-term stability and reproducibility.
Its lightweight hollow design, made from susceptibility-matched materials, provides excellent geometric fidelity even under varying temperatures.
Distortion analysis is based on spherical harmonic algorithms enabling full-volume deformation vector field (DVF) reconstruction.
The software automates phantom registration, XYZ detection, and correction for table or laser misalignments.
Setup, acquisition, and analysis can be completed in under 10 minutes.
The included software provides a 3D DICOM viewer, ROI selector, and standardized QA reporting tools.
Specifications
- Phantom material: acrylic (PMMA)
- Density: 1.18 g/cm³
- Weight: 21 kg
- Contrast volume: 5 L high-contrast T1 mineral oil
- Physical dimensions: 39.4 cm diameter × 39.1 cm length
- Imaging dimensions: 36.8 cm diameter × 32.1 cm length
- Internal hollow volume: approximately 25 L
- Distortion data points: approximately 11,253
- Software license: unlimited scans on one system (local)
- Compliance: NEMA/MITA MS-12, IEC 62464-1
Models
- 100-1018: QUASAR MRID 3D MRI Distortion Phantom
- 500-5040: Additional software license
- 500-5042: Annual maintenance contract with extended hardware warranty
- 500-5043: Unlimited software license
