导管室放射防护评价

Evaluation of Radiological Protection in Catheter Room

目的：评价放射防护在导管室介入治疗中的应用价值。方法在导管室60例介入手术中应用各类防护措施，利用BH3103B便携式辐射仪检测X线辐射平均剂量率，分析防护措施的效果。结果铅玻璃防护屏有效防护率为95.2%，铅防护服防护效率为94.9%，床下铅橡胶帘防护效率为88.9%，上述防护器材前后辐射剂量率差异均具统计学意义（P＜0.01）。距X线球管1～2 m处的射线衰减量为60.2%，距球管1～3 m处的射线衰减量为90.9%，1～2m和1～3m之间的X线剂量率差异具有统计学意义（P＜0.01）。结论采用防护措施后可明显降低X射线对医护人员的危害。

Objective To evaluate the application value of radiological protection in interventional treatments conducted in catheter room. Methods The effects of various kinds of radiological protection measures used in 60 cases of interventional operations were analyzed with BH3103B portable radiation detector which was used to measure the average dose rate of X-ray. Results There were significant differences between the radiation dose rate which was measured in front of lead-glass protecting screen and the radiation dose rate which was measured behind of lead-glass protecting screen （P＆lt;0.01）, whose effective protection rate was 95.2%. There were signiifcant differences between the radiation dose rate which was measured in front of lead protective clothing and the radiation dose rate which was measured behind of lead protective clothing （P〈0.01）, whose effective protection rate was 94.9%. There were signiifcant differences between the radiation dose rate which was measured in front of under-bed lead-rubber shield and the radiation dose rate which was measured behind of under-bed lead-rubber shield （P〈0.01）, whose effective protection rate was 88.9%. The attenuation rate of X-ray which was 1～2 m away from the tube was 60.2%while that of X-ray which was 1～3 m away from the tube was 90.9%. There were signiifcant differences between X-ray dose rate which was 1～2 m away from the tube and X-ray dose rate which was 1～3 m away from the tube （P〈0.01）. Conclusion The adoption of radiological protection measures can signiifcantly reduce the damage of X-ray to medical staff.