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Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
OCCUPATIONAL DOSE ASSESSMENT IN INTERVENTIONAL CARDIOLOGY IN SERBIA.
J Kaljevic1, O Ciraj-Bjelac2, J Stankovic3
1Vinca Institute of Nuclear Sciences, University of Belgrade, M. P. Alasa 12-14, Belgrade 11001, Serbia.
Occupational radiation doses for healthcare professionals in interventional cardiology were assessed using double-dosimetry. Physicians, nurses, and radiographers received doses within or exceeding annual occupational exposure limits.
Area of Science:
- Medical Physics
- Radiological Protection
- Occupational Health
Background:
- Interventional cardiology procedures involve significant radiation exposure.
- Accurate assessment of occupational doses is crucial for worker safety.
Purpose of the Study:
- To evaluate occupational radiation doses among physicians, nurses, and radiographers in interventional cardiology.
- To compare assessed doses against established annual dose limits.
Main Methods:
- A double-dosimetry method using thermoluminescent dosemeters (TLDs) for whole-body dose estimation (Hp(10)).
- Eye dose estimation using ambient dose equivalent (H*(10)) measurements.
- Dose assessment for 13 physicians, 6 nurses, and 10 radiographers over two years.
Main Results:
- Maximum annual effective doses were 4.3 mSv (physicians), 2.1 mSv (nurses), and 1.3 mSv (radiographers).
- Maximum collar-level doses (eye lens dose proxy) were 16.8 mSv (physicians), 11.9 mSv (nurses), and 4.5 mSv (radiographers).
- Estimated doses were found to be in accordance with or higher than annual occupational exposure limits.
Conclusions:
- Occupational radiation exposure in interventional cardiology requires careful monitoring and potential mitigation strategies.
- The study highlights the need for adherence to and potential revision of dose limits in high-radiation environments.
- Findings underscore the importance of robust dosimetry for protecting healthcare workers in cardiac catheterization laboratories.
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