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Effective dose to staff from interventional procedures: estimations from single and double dosimetry
Gerritjan Kuipers1, Xandra L Velders
1Academic Medical Centre (AMC), Amsterdam, The Netherlands. G.Kuipers@amc.uva.nl
Using two dosemeters did not improve the accuracy of effective dose estimation for physicians during interventional procedures. This study found single dosimetry to be as reliable as double dosimetry for radiation exposure monitoring.
Area of Science:
- Medical Physics
- Occupational Health
- Radiology
Background:
- Physicians performing interventional procedures face occupational radiation exposure.
- Accurate estimation of effective dose is crucial for radiation protection.
Purpose of the Study:
- To evaluate the added value of using a second personal dosemeter worn under a lead apron.
- To compare the accuracy of effective dose estimation using single versus double dosimetry.
Main Methods:
- Eleven physicians wore two personal dosemeters during interventional procedures.
- One dosemeter was worn outside the lead apron, and another was worn underneath.
- Effective doses were estimated using single and double dosimetry algorithms.
Main Results:
- Effective doses calculated with single dosimetry ranged from 0.11 to 0.85 mSv over 4 weeks.
- Effective doses calculated with double dosimetry ranged from 0.02 to 0.47 mSv.
- Statistical analysis showed no significant difference in accuracy between single and double dosimetry algorithms.
Conclusions:
- The effective dose estimation accuracy is not improved by using two dosemeters compared to one.
- Single dosimetry is sufficient for estimating effective dose in this context.
- Current dosimetry practices may not require the use of a second under-apron dosemeter.
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