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SMuK 2023 – wissenschaftliches Programm

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ST: Fachverband Strahlen- und Medizinphysik

ST 3: Poster Session

ST 3.2: Poster

Mittwoch, 22. März 2023, 11:00–12:30, ZEU/0146

Systematic study of a large data set of CT scans with regard to diagnostic reference levels — •Hanna Eick1, Lydia Bock1, Jans Böing1, Lennart Henkenherm2, Norbert Lang2, Christina Westphälinger2, and Alfons Khoukaz11Institute for Nuclear Physics, Westfälische Wilhelms-Universität Münster — 2Gesellschaft für Medizinische Physik und Strahlenschutz mbH, Münster

Diagnostic reference levels (DRL) for examinations on humans with ionizing radiation or radioactive sources are reviewed or updated if necessary every three years. These DRLs are determined and published by the Federal Office for Radiation Protection and are based on the data provided by the medical authorities. Each operator of a device with the mentioned types of radiation must provide review values to the medical authorities every two years. The collaboration of our working group from the WWU Münster with the 'Gesellschaft für Medizinische Physik und Strahlenschutz mbH' makes it possible, on the one hand, to analyze a large data set of CT examinations from different devices in various facilities and to shed more light on the DRLs and on the other hand, to develop an analysis program, which enables a fast and uncomplicated evaluation of the recorded data for every CT scanner. The results will be considered in particular in the context of the update of the DRLs published in November 2022 and to the reference levels valid until then. The analyses also make it possible to establish new DRLs for examinations that have not yet been considered.

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