低剂量乳腺X线摄影在触诊阴性乳腺钙化病灶导丝定位中的应用

发布时间：2018-03-04 18:21

  本文选题：乳腺摄影　切入点：辐射剂量　出处：《放射学实践》2015年11期 　论文类型：期刊论文

【摘要】：目的:探讨低剂量乳腺X线摄影在触诊阴性乳腺钙化病灶导丝定位中的初步应用。方法:20例临床触诊阴性但乳腺X线摄影检查发现钙化病灶并进行导丝定位的病例纳入研究并等分为低剂量组和STD组。低剂量组在导丝定位过程中首次曝光采用AOP模式下的STD模式,记录kV,mAs,然后将曝光模式改为手动模式,将mAs值下降50%左右。STD组采用全程STD模式自动曝光。将低剂量组与STD组进行定位满意度对照(针尖到病灶中心距离≤2cm为定位满意),比较其定位满意度。比较两组患者的平均AGD和ESD值的差异。结果:10例低剂量组均成功定位,与STD组的定位满意度无统计学差异(P=0.6860.05)。低剂量组与STD组的平均AGD和ESD值有统计学差异(P=0.0050.05)。结论:采用降低曝光量的方式对导丝定位中的钙化病灶进行低剂量摄影不影响定位结果,有效降低辐射剂量。
[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，

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