Dr. Stefan Ulzheimer Profile

Dr. Stefan Ulzheimer

at Siemens Healthineers

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Publications (2)

Proceedings Article | 4 April 2022 Presentation

Beam hardening artifacts in computed tomography: comparison of photon-counting and energy-integrating detectors

Thomas Holmes, Bernhard Schmidt, Thomas Flohr, Stefan Ulzheimer, David Bluemke, Amir Pourmorteza

Proceedings Volume PC12031, PC120310M (2022) https://doi.org/10.1117/12.2613178

KEYWORDS: Sensors, Photodetectors, Computed tomography, X-rays, X-ray detectors, X-ray computed tomography, Scanners, Reconstruction algorithms, Optical simulations, Image filtering

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Proceedings Article | 15 February 2021 Poster + Presentation + Paper

Maximum A Posteriori material decomposition for spectral photon-counting CT: application to human blood iron level estimation

Adam Harrison, Stefan Ulzheimer, Amir Pourmorteza

Proceedings Volume 11595, 115954H (2021) https://doi.org/10.1117/12.2582207

KEYWORDS: Iron, Blood, Photons, Iodine, Human subjects, Denoising, Computed tomography, Calibration

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