Automated CT Phantom QA
AutoQA Plus CT is a comprehensive quality assurance application for diagnostic CT and CBCT systems that supports routine constancy testing, annual QA, and multi-scanner trend analysis using industry-standard phantoms. It automates phantom orientation, slice selection, image analysis, trending, and reporting—delivering consistent, reproducible QA.
What You Get - At a Glance
- Streamlined automated analysis
Automatic phantom orientation and slice selection for supported phantoms - Physics-based algorithms
Documented methods for MTF, NPS, SSP, HU linearity, CNR, uniformity, and geometry - Pass/Fail with trends
Configurable tolerances with instant access to historical performance - Flexible reporting
Customizable report formatting profiles - Offline activation
No internet connection required for secure clinical environments - Multi-user workflows
Collaborate across large health systems by syncing tolerances and reporting styles across multiple sites. - Seamless DICOM Workflow
Built-in DICOM listener for direct-from-scanner data reception, eliminating manual file handling and import steps
Supported Phantoms
- Catphan® 400 / 500 / 600 / 700 series
(from The Phantom Laboratory) - ACR CT Accreditation Phantom
- Water phantoms of variable diameters
- Multi-Energy QA Phantom
(from QRM) - RMI 467 Tissue Characterization Phantom
(from Gammex)
Image Quality Parameters Evaluated
AutoQA Plus CT evaluates the full set of routine CT image quality metrics:
- Modulation Transfer Function (MTF)
- Slice Sensitivity Profile (SSP / slice thickness)
- Noise Power Spectrum (NPS)
- HU linearity and CT number accuracy
- Uniformity and noise
- Contrast-to-Noise Ratio (CNR)
- Low-contrast detectability
- Distance accuracy and geometry
- CBCT image quality metrics aligned with TG-142 workflows
Automation That Saves Time
AutoQA Plus CT eliminates manual setup steps while preserving full control and transparency:
- Automatic phantom detection and orientation
- Intelligent slice selection for each phantom module
- Consistent ROI placement across scans and scanners
- Linked trend plots—jump directly from any measurement to its historical data
- User-defined tolerances applied consistently across sites
Reporting & Data Export
- Customizable report profiles (select metrics, limits, images, overlays)
- Export formats: HTML, PDF, Excel, CSV, JSON
- Site-specific report branding supported
System Requirements
- Windows 10 or Window 11 (64-bit)
- 8 GB RAM (16 GB RAM recommended)
- Microsoft .NET Framework 4.7.2
PTW - QRM Multi-Energy Phantom Support
AutoQA Plus CT provides automated analysis and reporting for the PTW -QRM Multi-Energy phantom, supporting consistent evaluation of energy-dependent CT performance using standardized workflows.
The following video, produced by PTW, demonstrates the Multi-Energy QA workflow using AutoQA Plus CT. It provides an independent overview of phantom setup, automated processing, and results reporting.