Agatha
Agatha is an image quality phantom designed for constancy testing of digital breast tomosynthesis systems. It provides a standardized and repeatable method for evaluating key aspects of imaging quality, ensuring consistent performance over time.
45mm thick slab of PMMA (160mm x 220mm)
Features for testing missing tissue from chest wall (30% fatty / 70% glandular tissue)
4 nylon wires for testing Line Object Spread Function (LOSF).
Perpendicular nylon wire for testing Signal-Difference-to-Noise-Ratio (SDNR).
Tilted Tungsten wire for z-direction sensitivity profiles (ZSP)
3 spherical inserts for testing:
3D MTF (3 and 5mm dia. 30% fatty / 70% glandular tissue material) System geometry tomographic motion Reconstruction effects on SDNR and ASF (0.5mm dia. Al sphere)
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