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OCCUPATIONAL RADIATION EXPOSURE DOSE OF THE EYE IN DEPARTMENT OF CARDIAC ARRHYTHMIA PHYSICIAN
Mamoru Kato1,2, Koichi Chida2, Takato Ishida1
1Department of Radiology and Nuclear Medicine, Research Institute for Brain & Blood Vessels, Akita, Japan.
Radiation Protection Dosimetry
|October 13, 2019
Summary
Direct eye dosemeters accurately measure radiation exposure for physicians during interventional radiology. Neck badges showed a correlation but were less precise for determining exact eye lens radiation dose.
Area of Science:
- Medical Physics
- Radiology
- Occupational Health
Background:
- Interventional radiology (IR) procedures are complex and involve significant radiation exposure.
- Protecting healthcare professionals from radiation is crucial, especially for sensitive organs like the eyes.
Purpose of the Study:
- To accurately measure eye lens radiation dose [Hp(3)] in physicians during IR procedures.
- To evaluate the effectiveness of direct eye dosemeters and compare them with neck glass badges for radiation monitoring.
Main Methods:
- Physicians wore direct eye dosemeters placed lateral to their eyes and outside protective eyeglasses.
- An additional direct eye dosemeter was worn inside the protective eyeglasses.
- Neck glass badges [Hp(0.07)] were also worn for comparison.
Main Results:
- A positive correlation was observed between neck badge dose and eye lens dose.
- Regression analysis showed R2 values of 0.62 (outside eyeglasses) and 0.71 (inside eyeglasses).
- These values suggest that neck badges may not precisely estimate the exact eye lens dose.
Conclusions:
- Direct eye dosemeters provide a more accurate evaluation of lens radiation dose [Hp(3)].
- Accurate dosimetry is recommended for physicians performing interventional radiology, particularly for tachyarrhythmia procedures.
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