Objective Percutaneous coronary interventions are associated with increased radiation exposure compared to most of the radiological examinations. This prospective study aimed at personnel dosimetry research of CA and ...Objective Percutaneous coronary interventions are associated with increased radiation exposure compared to most of the radiological examinations. This prospective study aimed at personnel dosimetry research of CA and PTCA, guided by the theory of radiation optimization. Methods The staffs dose was recorded by TLD, while the protective effect was surveyed by the portable dosimeter. Results 1.Having doses measured on the key parts of operator’s body, and computing their effective dose by models. Effective dose per procedure was estimated to be 3.5μSv for the principal operator.2.Having measured and judged the system of radiation protection of interventional radiology.3.Having estimated the risk for fatal cancer to operators conduced by intervention radiology. Lifetime probability of fatal cancer was3.5×10 -8 and 4.9×10 -9 for the principal operator and assistant operator per procedure. Conclusion Regarding radiation exposure, coronary intervention is considered a quite safe procedure for personnel in laboratories with modern equipment and experienced operators as long as standard safety precautions are considered. Exposure optimization though should be constantly sought through continuous review of procedures.展开更多
文摘Objective Percutaneous coronary interventions are associated with increased radiation exposure compared to most of the radiological examinations. This prospective study aimed at personnel dosimetry research of CA and PTCA, guided by the theory of radiation optimization. Methods The staffs dose was recorded by TLD, while the protective effect was surveyed by the portable dosimeter. Results 1.Having doses measured on the key parts of operator’s body, and computing their effective dose by models. Effective dose per procedure was estimated to be 3.5μSv for the principal operator.2.Having measured and judged the system of radiation protection of interventional radiology.3.Having estimated the risk for fatal cancer to operators conduced by intervention radiology. Lifetime probability of fatal cancer was3.5×10 -8 and 4.9×10 -9 for the principal operator and assistant operator per procedure. Conclusion Regarding radiation exposure, coronary intervention is considered a quite safe procedure for personnel in laboratories with modern equipment and experienced operators as long as standard safety precautions are considered. Exposure optimization though should be constantly sought through continuous review of procedures.
