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| Clinical Investigation Study on Occupational Exposure of Operators During Cardiovascular Intervention |
| DING Yan-qiu, SUN Jing-xing, JIAO Ling, FENG Xin, ZHANG Xiao-dong, ZHANG Zhong-jian, WU Quan, ZHANG Wen-yi |
| Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Tianjin 300192 China |
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Abstract Objective To investigate the personal effective dose of the operator in cardiovascular intervention. Methods Lithium fluoride (LiF) thermoluminescent dosimeters (TLD) were used to carry out personal dose monitoring for the operator. Effective doses of the operator were evaluated in 28 clinical operations. Results The average fluoroscopy time for 24 Coronary angiography (CA), percutaneous transluminal coronary angioplasty (PTCA) and percutaneous intracoronary arterial stenting (PICAS) procedures was 19.2 ±6.3 min, and the average effective dose of the operator per procedure was 4.1 ±0.9μSv (under protection) and 52.2 ±15.5 μSv (without protection). However, for 4 PT procedures, average fluoroscopy time was 14.1 ±4.6 min, and the average effective dose of the operator per operation was 5.5 ±1.4 μSv (under protection) and 220 ±42 μSv (without protection). Conclusions Reducing fluoroscopy time, femoral artery access to the patients are recommended during interventional procedures. In order to decrease the radiation risk to the lowest level, more advanced equipments should be applied and radiation protection should be fully managed.
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Received: 23 March 2012
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