QUASARTM GRID3D Advantage
Image Distortion Analysis System
Evaluate geometric distortions in 3D MR images
for SRS QA applications.
Built for Confidence, Automation & Flexibility.
Compatible with Machine/Modality/Application:
Small Field Dosimetry,
TG284,
TG148,
TG135,
IGRT
Used for Workflow
Imaging QA RT,
Commissioning and Annual QA RT
Versatile
Compatible with the LeksellTM Vantage frame,
G-frame & frameless setups
1,765 control points
Providing high resolution accuracy in distortion mapping
Automated analysis
With advanced software interface, visualization and reporting features
AAPM TG-178 & TG-284
Designed to meet the highest standards in MR-SIM commissioning and distortion validation.
Achieve next-level imaging confidence for Stereotactic Radiosurgery
QUASAR GRID3D Advantage is the next evolution in geometric distortion analysis for stereotactic radiosurgery planning, designed to ensure precision in MR-SIM and CT-based imaging workflows. Built on the trusted foundation of the original GRID3D phantom, it now offers expanded compatibility and greater flexibility to meet the needs of modern radiosurgery. It is engineered to provide accurate, head-sized distortion analysis within the MR head coil, ensuring imaging precision for treatment planning confidence.
Features
Phantom Design
The GRID³ᴰ phantom is a dense acrylic 1 cm x 1 cm x 1 cm grid, encompassing a volume of 13 cm x 11 cm x 13 cm. The lattice structure is a key feature of the phantom design, where 2.0 mm CuSO4 solution filled channels converge, creating 1,765 signal-producing control points for detailed data analysis.
Compatibility
Process images and assess image distortion on MR and CT systems used in SRS planning, with or without a Leksell Gamma Knife® fiducial box. Ability to process co-registered datasets with increased support for ICON™ CBCT analysis. Valuable for Image Distortion Analysis on all Leksell Gamma Knife® platforms. Compatible with QUASAR DICOM Server.
High Resolution Geometric Accuracy
A dense matrix of 2.0 mm signal generating channels create 1,765 control points for geometric analysis. The position of all control points is confirmed to be within 0.1 mm manufacturing tolerance resulting in reliable accuracy. The GRID³ᴰ solution provides users with the confidence to make informed decisions on your department’s imaging systems.
Increased Confidence
Included within the transparent data reporting structure is the ability to assess Geometric Distortion within an imported GammaPlan® spatial reference frame. This feature allows correlation of data with the Leksell Gamma Knife® Coordinate System. Confirming your data within a familiar frame of reference increases confidence in GRID³ᴰ results.
Workflow Efficiency
The phantom is designed for simple, reproducible insertion into a Leksell G-frame fiducial box or use within the frameless ICON™ platform. Automated image analysis with an advanced user interface provides efficient image distortion analysis. Customizable interpretation, visualization and reporting features, enable smooth workflow in a clinical setting.
Software
The QUASAR GRID³ᴰ Advantage includes the high-resolution phantom and robust automated software platform. Together, they establish confidence that the imaging system supports the geometric accuracy and precision of the Leksell Gamma Knife®.
Compatible with QUASAR DICOM Server.
Advanced Control Point Detection
Our proprietary GRID³ᴰ analysis software uses an advanced, automated control point detection algorithm using channel detection methods. This results in a reduction of lost data points and improved detection accuracy. The algorithm is minimally affected by micro air pockets or image artifacts adjacent to measurement control points.
Easy to read data evaluation tools
Improve workflow efficiency by using intuitive software features designed to aid in your image distortion evaluation. Multiple charting and reporting options are at your fingertips to provide the necessary tools to make an informed decision. A report generator produces a PDF of analyzed data in an easy to interpret format.
Individual Control Point Evaluation
Each control point has a calculated geometric distortion and a detection uncertainty. Detected control points can be manually tuned by the user as desired to increase reporting accuracy. The software supports analysis directly within the GammaPlan™ frame of reference to increase user confidence in the resultant GRID³ᴰ DVF.
Enhanced 3D visualization Tools
Advanced interactive statistical graphics allow users to discover, explore, summarize and visualize quantitative data in order to form conclusions and make decisions. A customizable graphic display allows you to analyze the amount of distortion at a specific control point, accompanied by the uncertainty value of its detection.
Accessories and Technical Specifications
Specifications
- GRID3D Advantage phantom is constructed from rigid acrylic components, precisely machined to 0.1 mm specifications
- Phantom has 2.0mm CuSO4-filled channels, producing MR and CT signal
- Imaging portion of the phantom is 13 cm (R/L) x 11 cm (A/P) x 13 cm (S/I)
- Overall dimensions are 15.2 x 18.2 x 19 cm
- Weight 4.07 kg
Minimum Technical Requirements
- Windows 10 or higher (64-bit operating system)
- 4 gigabytes (GB) of RAM or more
- .NET Framework 4.6.1
- Visual C++ 2017 Runtime
100-1017: GRID³ᴰ Image Distortion Analysis System, includes;
- 1-Phantom
- 1-Software License
Find more resources here
Brochures
Grid3D Flyer
MR Simulation Overview Flyer 04_25
GRID3D Advantage Product Data Sheet
Webinar
MR QA from a Radiotherapy Perspective
During this webinar, the key steps of integrating an MRI scanner and MRI Linac into a radiotherapy workflow was presented, specially focusing on the quality assurance required for the use of the MR images.
Furthermore, the use of phantoms and their synergy with each other across the multi-vendor facility was discussed.
Akos Gulyban
Medical physicist at Institut Jules Bordet , Brussels.
Full presentation, for
logged-in
members
(58)
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