Occupational eye lens doses in interventional cardiology. A multicentric study

Area of Science:

• Medical Physics
• Radiological Protection
• Cardiology

Background:

• New European regulations have reduced the occupational dose limit for the eye lens to 20 mSv yr(-1).
• Interventional cardiologists are exposed to ionizing radiation during procedures, raising concerns about occupational health.
• Existing occupational dose limits may not adequately protect against potential long-term effects.

Purpose of the Study:

• To measure occupational radiation doses received by staff in interventional cardiology.
• To compare measured doses against the new European occupational dose limit for the eye lens.
• To identify factors influencing dose levels and assess the effectiveness of protective measures.

Main Methods:

• Occupational doses (H p(10)) were measured using electronic dosemeters worn over the apron at chest level in five centers.
• Scatter dose at goggles (H p(0.07)) was measured in one center using optically stimulated luminescence dosemeters.
• Doses were recorded for interventional cardiologists and other staff during various procedures.

Main Results:

• The average occupational dose for cardiologists was 46 μSv/procedure.
• Procedures for valvular and structural heart diseases resulted in the highest doses, averaging over 100 μSv/procedure.
• Significant variations in doses among centers suggest differences in radiation protection practices.

Conclusions:

• Interventional cardiologists, especially those not using protective tools like screens or goggles, may exceed the new eye lens dose limit.
• Adherence to radiation protection protocols is crucial for minimizing occupational exposure.
• Further research and implementation of enhanced protective strategies are needed to ensure cardiologist safety.