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Development of a headgear-based eye protection device for physicians performing fluoroscopy-guided bronchoscopy
Masaki Fujisawa1, Yoshihiro Haga1,2, Saki Takahira1,2
1Department of Radiological Technology, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba-ku, Sendai 980-8575, Japan.
Journal of Radiation Research
|June 27, 2025
Summary
A new lead shield significantly protects physicians' eyes during fluoroscopy-guided bronchoscopy, reducing radiation exposure by over 80% for the left eye. This device offers practical radiation protection for lung cancer diagnosis and treatment.
Area of Science:
- Medical Physics
- Interventional Pulmonology
- Occupational Health
Background:
- Fluoroscopy-guided bronchoscopy is crucial for diagnosing and treating lung diseases, including lung cancer.
- Prolonged fluoroscopic exposure poses risks of radiation-induced lens injuries, such as cataracts, to physicians.
- New occupational lens dose limits necessitate enhanced radiation protection strategies.
Purpose of the Study:
- To develop and evaluate a novel lens protection device for physicians performing bronchoscopy.
- To assess the efficacy of the device in reducing scattered radiation exposure to the eyes.
Main Methods:
- A lead (Pb) sheet (0.175 mm) integrated with headgear was designed as a novel lens protection device.
- A phantom study utilized a trunk phantom (patient) and a head phantom (physician).
- Scattered radiation doses were measured using a radiophotoluminescence glass dosimeter at 15 locations on the head phantom, with and without the device.
Main Results:
- The device provided over 80% protection for the left eye across all tested angles.
- Protection for the right eye varied between approximately 40% and 75%, depending on the angle.
- The device demonstrated significant reduction in scattered radiation dose to the physician's eyes.
Conclusions:
- The novel lens protection device effectively reduces scattered radiation to the left eye during bronchoscopy.
- The device offers a practical solution for radiation protection, minimizing vision obstruction and discomfort.
- This protective device may also be beneficial for other fluoroscopically guided interventional procedures.
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