本文選題：乳腺攝影　切入點(diǎn)：輻射劑量　出處：《放射學(xué)實(shí)踐》2015年11期 　論文類型：期刊論文

【摘要】：目的:探討低劑量乳腺X線攝影在觸診陰性乳腺鈣化病灶導(dǎo)絲定位中的初步應(yīng)用。方法:20例臨床觸診陰性但乳腺X線攝影檢查發(fā)現(xiàn)鈣化病灶并進(jìn)行導(dǎo)絲定位的病例納入研究并等分為低劑量組和STD組。低劑量組在導(dǎo)絲定位過程中首次曝光采用AOP模式下的STD模式,記錄kV,mAs,然后將曝光模式改為手動模式,將mAs值下降50%左右。STD組采用全程STD模式自動曝光。將低劑量組與STD組進(jìn)行定位滿意度對照(針尖到病灶中心距離≤2cm為定位滿意),比較其定位滿意度。比較兩組患者的平均AGD和ESD值的差異。結(jié)果:10例低劑量組均成功定位,與STD組的定位滿意度無統(tǒng)計學(xué)差異(P=0.6860.05)。低劑量組與STD組的平均AGD和ESD值有統(tǒng)計學(xué)差異(P=0.0050.05)。結(jié)論:采用降低曝光量的方式對導(dǎo)絲定位中的鈣化病灶進(jìn)行低劑量攝影不影響定位結(jié)果,有效降低輻射劑量。
[Abstract]:Objective: to explore the preliminary application of low dose mammography in the localization of calcified lesions in palpation negative breast. Methods: twenty cases of diseases with negative palpation but breast radiography found calcified lesions and localize them. The patients were divided into two groups: low dose group and STD group. In the low dose group, the first exposure under AOP mode was performed during the orientation of the guide wire, and the STD mode was used for the first time in the low dose group. Log the kV mAsand then change the exposure mode to manual mode, The mAs value was reduced by about 50%. The whole course STD mode was used to expose the mAs. The localization satisfaction was compared between the low dose group and the STD group (the distance from the tip to the center of the lesion was 鈮，

本文編號：1566786