本文選題：乳腺X射線攝影 + 乳腺平均劑量��； 參考：《中國輻射衛(wèi)生》2016年06期

【摘要】：目的通過調(diào)查全國15個(gè)省市不同級別醫(yī)療機(jī)構(gòu)乳腺X射線攝影曝光參數(shù)并測量計(jì)算受檢者乳腺平均劑量,分析我國乳腺X射線攝影中受檢者壓迫后乳房厚度分布及乳腺受照劑量水平,為建立適合我國成年女性受檢者乳腺X射線攝影的劑量指導(dǎo)水平提供依據(jù)。方法按照《醫(yī)用輻射危害評價(jià)與控制技術(shù)研究》實(shí)施方案的要求,調(diào)查臨床實(shí)際乳腺攝影受檢者的年齡、乳房壓迫厚度、曝光參數(shù)、攝影體位等相關(guān)信息,通過手動曝光測量該條件下乳房壓迫厚度處的入射空氣比釋動能(Ka,i),計(jì)算受檢者的乳腺平均劑量(AGD)。結(jié)果共在全國15個(gè)省的149家醫(yī)院調(diào)查了4372例乳腺X射線攝影體位,273臺不同類型乳腺X射線攝影設(shè)備,包括屏片乳腺X射線攝影、計(jì)算機(jī)乳腺X射線攝影(乳腺CR)和直接數(shù)字乳腺X射線攝影(乳腺DR)設(shè)備,對于這三種類型的設(shè)備,頭尾(CC)位投照時(shí)受檢者AGD的平均值分別為1.21,1.77,1.61 m Gy,AGD的75%位分別為1.36,2.22,1.81 m Gy;斜側(cè)(MLO)位時(shí)受檢者AGD平均值分別為1.02,1.78,1.66 m Gy,AGD的75%位分別為1.23,2.46,1.81 m Gy。CC位和MLO位時(shí)乳房壓迫厚度的中位數(shù)分別為4.2和4.5 cm。結(jié)論不同類型乳腺X射線攝影設(shè)備中,屏片乳腺X射線攝影設(shè)備致受檢者的乳腺平均劑量最低,其次是乳腺DR設(shè)備,乳腺CR設(shè)備致患者劑量最高。
[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.
【作者單位】： 中國疾病預(yù)防控制中心輻射防護(hù)與核安全醫(yī)學(xué)所輻射防護(hù)與核應(yīng)急中國疾病預(yù)防控制中心重點(diǎn)實(shí)驗(yàn)室;
【基金】：衛(wèi)生行業(yè)科研專項(xiàng)(201002009)
【分類號】：R737.9;R730.44

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