Optimization of radiation protection using diagnostic reference values: current approaches and future directions.

Area of Science:

• Medical Imaging
• Radiation Protection
• Radiological Physics

Background:

• Diagnostic reference levels (DRLs) are crucial for optimizing radiation protection in medical imaging.
• Evolving conditions for dose assessment necessitate a review of the current DRL system's effectiveness.
• The study examines the Swedish national DRL system in the context of European guidelines.

Purpose of the Study:

• To evaluate the current functionality of the Swedish DRL system.
• To determine if adjustments are needed to reflect changes in clinical practice and dose assessment.
• To explore the impact of digital data and potential enhancements to the DRL framework.

Main Methods:

• Analysis of the national DRL system in Sweden.
• Inclusion of European projects and guidelines for comparative reference.
• Assessment of dose variability and changes in national DRL values.

Main Results:

• A decrease in the variability of typical radiation doses has been observed.
• National DRL values have been reduced, with minimal changes in nuclear medicine.
• Challenges exist in revising DRL values due to these developments.

Conclusions:

• The DRL system requires updates to maintain relevance with evolving clinical practices.
• Integrating image quality assessment into the DRL framework is a critical area for development.
• Considerations for specific indications, patient cohorts, and size may be necessary for future DRL revisions.