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[Estimation of operator dose by dose area product meter]
Hajime Sakamoto1, Hiroshi Kobayashi, Hiroaki Ikegawa
1Interdisciplinary Graduate School of Medicine and Engineering, Department of Radiology, University of Yamanashi.
Estimating operator radiation dose in interventional radiology (IVR) is crucial. Dose Area Product (DAP) strongly correlates with operator effective dose, enabling dose estimation when direct measurements are unavailable.
Area of Science:
- Medical Physics
- Radiology
- Radiation Protection
Context:
- Interventional radiology (IVR) procedures are increasingly complex and lengthy.
- Accurate assessment of radiation exposure for operators and patients is essential.
- Operator radiation doses are primarily from scattered X-rays during procedures.
Purpose:
- To evaluate the feasibility of using Dose Area Product (DAP) for estimating operator radiation dose.
- To compare DAP measurements with direct dose measurements at various body parts.
Summary:
- Dose Area Product (DAP) showed a strong correlation with operator effective dose (r=0.87).
- Dose equivalents at the neck and shoulders correlated strongly with DAP (r=0.85, 0.86).
- DAP provided a better correlation with dose equivalents than fluoroscopic time for all measured body parts.
Impact:
- DAP can be utilized to estimate operator dose equivalents and effective doses when direct measurements are not feasible.
- This study supports improved radiation safety protocols in interventional radiology.
- Findings contribute to better understanding of radiation exposure in complex medical imaging procedures.
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