论文部分内容阅读
目的掌握北京地区乳腺摄影受检者乳腺腺体平均受照剂量水平。方法选取北京地区8家医疗单位542例受检者乳腺摄影时的条件,测量该条件下的空气比释动能,根据2011年度卫生行业科研专项的实施方案和欧盟(EC)等技术报告确定乳腺腺体平均剂量(AGD)的计算方法并计算。结果乳腺腺体平均剂量平均值:CR(1.70 mGy)高于DR(1.27 mGy);就乳腺腺体平均剂量而言,钼靶/钼滤过>钼靶/铑滤过>铑靶/铑滤过>钨靶/铑滤过。结论不论是哪一级别的医院、何种采集模式、何种靶/滤过和体位,其乳腺腺体平均剂量平均值都不高于国家相关规定的2.0 mGy,但是个别医院存在乳腺腺体平均剂量过高和所有检查均采用同一个条件等的问题,应充分考虑乳腺摄影的防护最优化。
Objective To master the average dose of mammary gland in mammography subjects in Beijing. Methods 542 subjects in 8 medical institutions in Beijing were selected for mammographic examination. The air kerma was measured under this condition. The mammary gland was determined according to the implementation plan of the scientific research project of the health industry in 2011 and the technical report of the European Union (EC) Body average dose (AGD) calculation method and calculation. Results Mean mean dose of mammary gland: CR (1.70 mGy) higher than DR (1.27 mGy); for mamm gland average target, molybdenum target / molybdenum filter> Molybdenum target / rhodium filter> Rh target / rhodium filter Over> tungsten target / rhodium filtration. Conclusion No matter what level of hospital, what kind of collection mode, what kind of target / filtration and body position, the average dose of mammary gland is not higher than the national relevant provisions of 2.0 mGy, but there are individual hospitals, the average number of mammary glands Dosage and all checks are used the same conditions and other issues, should give full consideration to the optimal protection of mammography.