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OCCUPATIONAL DOSES FOR THE FIRST AND SECOND OPERATORS IN LEBANESE INTERVENTIONAL CARDIOLOGY SUITES
1Lebanese Atomic Energy Commission, National Council for Scientific Research, P.O. Box 11-8281, Riad El Solh, Beirut, Lebanon.
Radiation Protection Dosimetry
|May 26, 2018
Summary
Occupational radiation doses were measured for interventional cardiologists and technicians during cardiac procedures. Both groups risked exceeding eye lens dose limits, highlighting the need for specific eye monitoring.
Area of Science:
- Medical Physics
- Radiology
- Occupational Health
Background:
- Occupational radiation exposure is a significant concern for healthcare professionals performing interventional procedures.
- Cardiac catheterization procedures, such as coronary angiography and percutaneous coronary interventions, involve ionizing radiation.
- Monitoring radiation doses is crucial for ensuring the safety of medical staff.
Purpose of the Study:
- To assess the occupational radiation doses received by interventional cardiologists (first operators) and technicians (second operators) in Lebanese hospitals.
- To evaluate effective dose, hand dose, and eye lens dose during coronary angiography and percutaneous coronary interventions.
- To determine if current monitoring practices are adequate and if additional measures, like eye lens monitoring, are necessary.
Main Methods:
- Dose monitoring of 12 first operators and 10 second operators across 10 Lebanese hospitals.
- Use of dosemeters placed at chest, collar, wrist, and left eye levels, both under and over lead aprons.
- Follow-up periods ranged from two to six bimonthly monitoring sessions per individual.
Main Results:
- Mean effective doses were 6 μSv/procedure for first operators and 2.3 μSv/procedure for second operators.
- Mean hand doses were 112 μSv/procedure for first operators and 16 μSv/procedure for second operators.
- Mean eye lens doses were 15 μSv/procedure for first operators and 7 μSv/procedure for second operators, with extrapolated annual doses potentially exceeding permissible limits.
Conclusions:
- Both interventional cardiologists and technicians are exposed to significant radiation doses, particularly to the eyes.
- Extrapolated annual eye lens doses suggest a risk of exceeding 3/10th of the permissible limit for both operator groups.
- There is a clear need for implementing dedicated eye lens monitoring for personnel involved in cardiac interventional procedures.
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