Traduction en anglais : Estimation of radiation exposure and radiation risk to staff of cardiac catheterization laboratories.
The staff at interventional radiological procedures is exposed to high levels of ionizing radiation.
This applies especially to measures at cardiac catheterization laboratories.
In this study the annual radiation exposure to the staff was estimated by measuring the dose rate under characteristic conditions.
It could be shown that the resulting radiation exposure was strongly dependent on the radiation protection measures and is also dependent on the operation conditions of the x-ray-tube.
The effective dose for the physician wearing a lead apron and thyroid shield was determined to about 1.7 mSv/a. Without a thyroid shield an effective dose of about 3.5 mSv/a resulted.
This corresponds to approximately the natural background radiation of about 2.4 mSv/a in the Federal Republic of Germany.
From the number of procedures performed we could derive an effective dose of approximately 1-2 muSv per application for the physician, averaged over all types of procedures.
Further, it could be shown that the readings of the film badges, usually worn by the staff, underestimate the effective dose by approximately a factor of two.
This is because the film badges do not include the contribution of the unshielded parts of the body to effective dose.
From the estimated annual effective dose, a lifetime dose of 68 mSv was estimated for a 40-year working career.
The corresponding lifetime risk for induced fatal cancer due to radiation exposure was determined to 0. (...)
Mots-clés Pascal : Cathétérisme, Coeur, Exposition professionnelle, Irradiation(personne), Durée vie, Dose, Estimation, Risque, Toxicité, Homme, Médecine travail
Mots-clés Pascal anglais : Catheterization, Heart, Occupational exposure, Radiation exposure(person), Lifetime, Dose, Estimation, Risk, Toxicity, Human, Occupational medicine
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0283871
Code Inist : 002B30B01B. Création : 15/07/1997.