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  • Title: [Radiation exposure to personnel in cardiac catheterization laboratories].
    Author: von Boetticher H, Meenen C, Lachmund J, Hoffmann W, Engel HJ.
    Journal: Z Med Phys; 2003; 13(4):251-6. PubMed ID: 14732954.
    Abstract:
    Radiation exposure in personnel of cardiac catheterization units is based on local dosimetry during patient investigations. In the present study, dose rates were measured at various heights in representative locations, with and without fixed radiation protection shields in place. To determine the effective dose values, TLD measurements were performed using on Alderson phantom to generate radiation scatter and a second phantom in the position of the cardiologist performing the catheterization. Various types of personal radiation protection garment and fixed shields were considered in the calculations. Our results indicate on one hand that good protective standards can be achieved with effective doses below 1 mSv/year under optimized conditions. On the other hand, inappropriate radiation protection equipment can cause substantial increase of radiation doses. Alone the lack of a thyroid shield increases the effective dose of the cardiologist by a factor of 3. For the personnel, effective doses were generally higher than personal doses by a factor between 1.5 and 4.8 depending on the radiation protection situation.
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