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Medical X-ray

Providing the metrology required to ensure patient safety during medical X-rays

Metrology Partnership project Traceability in medical X-ray imaging dosimetry (22NRM01, TraMeXI) is working to review a range of radiation conditions relevant in medical imaging and produce a proposal to update the procedures used for dosimeter calibrations and clinical measurements.

In November 2024, project partners HUS (Helsinki University Hospital) and STUK (Finnish Radiation and Nuclear Safety Authority) hosted a Workshop on X-ray Imaging Dosimetry at the Bridge Hospital in Helsinki, Finland.

The workshop brought together 70 professionals in medical physics and metrology from 16 countries. It coincided with the halfway point of the TraMeXI project and offered a useful forum to discuss project developments and proposed updates in dosimetry practices, as well as to receive feedback from the main stakeholders.

The event was endorsed by EFOMP (European Federation of Organisations for Medical Physics) and organised in collaboration with NACP-RPC (Nordic Association for Clinical Physics Radiological Physics Committee).

The purpose of the workshop was to bridge the gap between the more theoretical knowledge of the metrologists and the practical reality of the clinical medical physicists with support from dosimeter manufacturers, whose contributions were an integral part of the workshop. Metrologists, manufacturers, and clinical professionals were invited, and the topics addressed included dosimetry equipment principles and operation, imaging modality specific measurement procedures and patient specific dosimetry, uncertainties (theory and practical exercises) and the use of AI in dosimetry.

The workshop included a live-streamed practical session during which some of the participants were invited to assist in carrying out measurements in three different modalities of X-ray imaging (conventional projection, mammography and interventional C-arm systems).

Feedback from participants indicated that the ambitious programme of talks and practical exercises offered something for everyone. Most importantly, the participants agreed that the main goal was achieved: the workshop helped bridge the gap between theory and clinical reality by providing both metrologists and clinical medical physicists a common platform to learn about and discuss topics related to X-ray imaging dosimetry. The project consortium received valuable feedback on the project, which will be used to guide the remaining activities of the TraMeXI-project.

Workshop presentations

This Metrology Partnership project has received funding from the European Partnership on Metrology, co-financed by the European Union Horizon Europe Research and Innovation Programme and from the Participating States.

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