Absorbed dose in the operator's brain in interventional radiology practices: evaluation through KAP value conversion
Paolo Ferrari1, Zoran Jovanovic2, Elena Bakhanova3
1ENEA-IRP, Radiation Protection Institute, Bologna, Italy.
Summary
This study simulated brain radiation exposure for interventional radiologists. Results show dose varies by operator position, with potential for higher left-brain exposure in some scenarios.
Area of Science:
- Medical Physics
- Radiology
- Radiation Protection
Background:
- Concerns exist regarding brain tumor mortality among interventional radiologists and cardiologists.
- Accurate assessment of operator brain radiation exposure is crucial for safety.
Purpose of the Study:
- To evaluate operator brain radiation exposure during interventional procedures.
- To quantify absorbed doses in specific brain regions using Monte Carlo simulations.
Main Methods:
- Monte Carlo simulations were performed using anthropomorphic phantoms.
- Absorbed doses were estimated for typical interventional radiology scenarios.
- Doses were normalized to air kerma-area product (KAP) for various X-ray beam qualities and projections.
Main Results:
- For the primary operator, no significant difference in brain exposure between left and right sides was observed.
- For a secondary operator positioned further from the X-ray source, left brain exposure was up to twice that of the right.
- Simulated results align with existing literature on dose measurements.
Conclusions:
- Conversion factors (absorbed dose per KAP) can estimate operator brain exposure.
- Operator positioning significantly influences radiation dose distribution to the brain.
- Findings support the need for protective measures tailored to interventional procedure setups.
Keywords:
Absorbed doseBrain exposureInterventional radiology practiceMedical staff dosimetryMonte Carlo simulationMore Related Videos
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