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Peer-Reviewed Publication
Phys Med2025;135105013.July 1, 2025Journal Article

Exposure control at the first dark-field chest radiography demonstrator system.

M E Lochschmidt1, M Frank2, K Willer2, H Bast2, L Kaster2, T Urban2, W Noichl3, R Schick2, F De Marco3, T Koehler4, I Maack5, G S Zimmermann6, D Pfeiffer7, B Renger8, F Pfeiffer9
1Chair of Biomedical Physics, Department of Physics, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany; Munich Institute of Biomedical Engineering, Technical University of Munich, 85748 Garching, Germany; Institute for Diagnostic and Interventional Radiology, School of Medicine and Health, TUM Klinikum, Technical University of Munich (TUM), 81675 München, Germany. Electronic address: maximilian.lochschmidt@tum.de.
2Chair of Biomedical Physics, Department of Physics, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany; Munich Institute of Biomedical Engineering, Technical University of Munich, 85748 Garching, Germany; Institute for Diagnostic and Interventional Radiology, School of Medicine and Health, TUM Klinikum, Technical University of Munich (TUM), 81675 München, Germany.
3Chair of Biomedical Physics, Department of Physics, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany; Munich Institute of Biomedical Engineering, Technical University of Munich, 85748 Garching, Germany.
4Philips Innovative Technologies, 22335, Hamburg, Germany; TUM Institute for Advanced Study, Technical University of Munich, 85748 Garching, Germany.
5Philips Medical Systems DMC, 22335, Hamburg, Germany.
6Division of Respiratory Medicine, Department of Internal Medicine I, School of Medicine and Health, TUM Klinikum, Technical University of Munich (TUM), 81675 München, Germany.
7Institute for Diagnostic and Interventional Radiology, School of Medicine and Health, TUM Klinikum, Technical University of Munich (TUM), 81675 München, Germany; TUM Institute for Advanced Study, Technical University of Munich, 85748 Garching, Germany.
8Institute for Diagnostic and Interventional Radiology, School of Medicine and Health, TUM Klinikum, Technical University of Munich (TUM), 81675 München, Germany.
9Chair of Biomedical Physics, Department of Physics, TUM School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany; Munich Institute of Biomedical Engineering, Technical University of Munich, 85748 Garching, Germany; Institute for Diagnostic and Interventional Radiology, School of Medicine and Health, TUM Klinikum, Technical University of Munich (TUM), 81675 München, Germany; TUM Institute for Advanced Study, Technical University of Munich, 85748 Garching, Germany.

Abstract

PURPOSE: A first demonstrator system for clinical dark-field chest radiography was recently constructed. Due to its scanning acquisition, conventional exposure regulation systems are not possible. This study presents the adaptation of exposure to each patient individually, using a conventional radiograph as a reference. Additionally, an alternative approach for individual exposure planning based o…

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