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Catphan® 500 – Precision Imaging Phantom for High-Performance CT Quality Assurance

The Catphan® 500 CT phantom enables complete QA testing—slice geometry, resolution, contrast, uniformity—plus Smári cloud-based image analysis.

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Catphan® 500 – Precision Imaging Phantom for High-Performance CT Quality Assurance

  • The Catphan® 500 phantom is an industry-leading solution for comprehensive CT image quality assurance. Specifically engineered to characterize the maximum imaging performance of axial and spiral CT scanners, this phantom offers unparalleled diagnostic accuracy and QA precision.
  • The system is composed of four specialized modules—CTP401, CTP528, CTP515, and CTP486—housed within a compact 20 cm unit. These modules enable a wide array of critical CT evaluations including sensitometry, spatial uniformity, scan slice geometry, low contrast detection, and high-resolution imaging up to 21 line pairs/cm.
  • What sets the Catphan® 500 apart is its integration with Smári, a powerful web-based image analysis platform developed by The Phantom Laboratory. Smári automates image evaluation, stores measurement data securely in the cloud, and provides easy access to trends, comparisons, and historical performance analysis—empowering radiology professionals with faster, data-driven decision-making.

🔬 Module Highlights:

  • CTP401 Slice Geometry & Sensitometry: 23° wire ramps provide high-precision slice thickness evaluation. CT number linearity is tested using targets made from Teflon, Acrylic, LDPE, and Air.

  • CTP528 High-Resolution Module: Measures spatial resolution up to 21 lp/cm using radial test patterns and MTF point-source beads to eliminate streak artifacts.

  • CTP515 Low Contrast Module: Features rods of varying diameters and contrast levels, including subslice objects with 1.0% contrast—ideal for tuning protocols to detect subtle lesions or tumors.

  • CTP486 Uniformity Module: Solid water-equivalent material for accurate measurements of uniformity, CT number stability, and noise—without the hassle of liquid phantoms.

The Catphan® 500 is fully compatible with leading OEM variations, including Varian CTP 504 and Elekta CTP 503 models. It is ideal for routine QA, protocol optimization, system benchmarking, and acceptance testing in clinical and research environments.

                                                                                       

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