1Division of Radiation Physics, Cancer Control Agency of British Columbia, Victoria Cancer Clinic , Victoria V8R 1J8
2Department of Medical Imaging, Victoria General Hospital , Victoria, BC Canada
Tóm tắt
Staff working in cardiac catheterization laboratories receive radiation exposures from primary radiation (if any part of their body is placed within the X-ray beam) or from secondary radiation due to scatter from the patient and image intensifier and to leakage from the X-ray tube. As a result, the radiation exposure distribution over a staff member's body is expected to be non-uniform. In order to evaluate the radiation somatic risk to be assigned to an individual, and to assess the efficacy of the personal shielding used, radiation exposures must be measured at specific anatomical locations.In the study described here, radiation exposures received by catheterization laboratory personnel were measured at various body locations in two separate laboratories over 3–5 day periods. This study was initiated as a consequence of conventional radiation monitoring by the federal regulatory agency (Bureau of Radiation and Monitoring Devices, Health and Welfare Canada), which had indicated that occasional high exposures were received by some individuals.
