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We present a straight-forward strategy for how to process anthropomorphic phantoms to enable simulations of propagation-based phase-contrast X-ray imaging (PBI). PBI requires sampling of a few micrometers which results in few TB of storage for a centimeter-sized model. With long propagation distances the thickness of each material in the X-ray direction is enough to perform accurate simulations. By using a boundary-preserving upsampling procedure on a coarsely voxelated phantom followed by a summation in the X-ray direction thickness maps with high sampling can be built. This opens up for improved imaging optimization and virtual clinical trials.
Ilian Häggmark,Kian Shaker, andHans M. Hertz
"Simulation strategy for using large realistic phantoms in propagation-based phase contrast x-ray imaging", Proc. SPIE 11595, Medical Imaging 2021: Physics of Medical Imaging, 115954L (15 February 2021); https://doi.org/10.1117/12.2581030
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Ilian Häggmark, Kian Shaker, Hans M. Hertz, "Simulation strategy for using large realistic phantoms in propagation-based phase contrast x-ray imaging," Proc. SPIE 11595, Medical Imaging 2021: Physics of Medical Imaging, 115954L (15 February 2021); https://doi.org/10.1117/12.2581030