我国乳腺X射线摄影受检者乳腺剂量水平调查研究

发布时间：2018-05-24 09:20

本文选题：乳腺X射线摄影 + 乳腺平均剂量　；参考：《中国辐射卫生》2016年06期

【摘要】：目的通过调查全国15个省市不同级别医疗机构乳腺X射线摄影曝光参数并测量计算受检者乳腺平均剂量,分析我国乳腺X射线摄影中受检者压迫后乳房厚度分布及乳腺受照剂量水平,为建立适合我国成年女性受检者乳腺X射线摄影的剂量指导水平提供依据。方法按照《医用辐射危害评价与控制技术研究》实施方案的要求,调查临床实际乳腺摄影受检者的年龄、乳房压迫厚度、曝光参数、摄影体位等相关信息,通过手动曝光测量该条件下乳房压迫厚度处的入射空气比释动能(Ka,i),计算受检者的乳腺平均剂量(AGD)。结果共在全国15个省的149家医院调查了4372例乳腺X射线摄影体位,273台不同类型乳腺X射线摄影设备,包括屏片乳腺X射线摄影、计算机乳腺X射线摄影(乳腺CR)和直接数字乳腺X射线摄影(乳腺DR)设备,对于这三种类型的设备,头尾(CC)位投照时受检者AGD的平均值分别为1.21,1.77,1.61 m Gy,AGD的75%位分别为1.36,2.22,1.81 m Gy;斜侧(MLO)位时受检者AGD平均值分别为1.02,1.78,1.66 m Gy,AGD的75%位分别为1.23,2.46,1.81 m Gy。CC位和MLO位时乳房压迫厚度的中位数分别为4.2和4.5 cm。结论不同类型乳腺X射线摄影设备中,屏片乳腺X射线摄影设备致受检者的乳腺平均剂量最低,其次是乳腺DR设备,乳腺CR设备致患者剂量最高。
[Abstract]:Objective to investigate the mammography exposure parameters of different medical institutions in 15 provinces and cities in China and to measure and calculate the average dose of mammary gland. The distribution of breast thickness after compression and the dose level of mammary gland in mammography in China were analyzed in order to provide the basis for establishing a dose guidance level suitable for adult female mammography in China. Methods according to the requirements of the implementation scheme of "Medical radiation Hazard Evaluation and Control Technology", we investigated the age, breast compression thickness, exposure parameters, position of mammography, and so on. The incident air specific release kinetic energy at the compression thickness of the breast was measured by manual exposure, and the average dose of the breast was calculated. Results 4372 cases of mammography were investigated in 149 hospitals in 15 provinces, including 4372 mammography equipment of different types, including screen mammography. Computer mammography (mammography) and direct digital mammography (DRR) equipment, for these three types of equipment, The mean value of AGD of the subjects at the head and tail position was 1.21 / 1.71.61 m / Gy.CC and 1.36 / 1.22 / 1.81 m / g, respectively, and the mean value of AGD of 1.02 / 1.786 / 1.66 m / g Gy.CC was 1.232.46 / 1.81 m / s and 1.23 / 2.46 / 1.81 m / s, respectively, and the mean value of AGD was 1.02 / 1.78 / 1.66 m / m Gy.CC and 1.23 / 2.46 m / 1.81 m / s, respectively, and the mean value of AGD in the oblique position was 1.02 / 1.78 / 1.66 m Gy.CC and 1.81 m / s respectively. The number of digits was 4.2 and 4.5 cm respectively. Conclusion among the different types of mammography equipment, the average dose of mammary gland was the lowest, followed by the mammary gland Dr device and the breast CR device.
【作者单位】：中国疾病预防控制中心辐射防护与核安全医学所辐射防护与核应急中国疾病预防控制中心重点实验室;
【基金】：卫生行业科研专项(201002009)
【分类号】：R737.9;R730.44

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