摘要
目的:探讨低剂量乳腺钼靶X线摄影技术,提高影像质量,降低被检者的曝光量。材料与方法:利用SIEMENS公司MAMMOMAT 1000型乳腺摄影机,对30例志愿者双侧乳腺对其一侧乳腺CC位和MLO位用30kV摄影,另一侧乳腺CC位和MLO位用35kV摄影,其它参数均相同,获得CC位和MLO位各60幅影像,分析对比影像质量,记录曝光量(mAs)值,并对其结果进行统计学分析。结果:35kV比30kV摄影曝光量值平均降低约2.2倍,且影像质量高;对CC位和MLO位30kV、35kV摄影时的曝光量值分别进行配对t检验,CC位t=4.03,p<0.05,MLO位t=3.78,p<0.05,均具有统计学意义。对2组影像质量进行X2检验,X2=10.8,p<0.05,具有统计学意义。结论:低剂量乳腺钼靶X线摄影千伏应用35kV为宜,能够提高影像质量降低被检者的曝光量。
Purpose:To lower the breast molybdenum target x line photography improve image quality and is the exposure.Materials and Methods:Use SIEMENS compay MAMMOMAT 1000 who have the camera,For thirty cases volunteers side to side of the breast of her breast,and the cc clique realized they mlo with 30kV photography and other side of the breast,and the cc clique realized they mlo with 35kV photography and other parameters are the same,and the cc clique realized they mlo of 60 images,analysis and comparison of the image quality records exposure and statistical analysis.the result in.Results:35kV 30kV mAs lower than the average of about 2 times,and to improve image quality,And the cc clique realized they MLO 30kV 35kV photography,the exposure value respectively a matching t,as the cc clique realized they t=4.03,p< 0.05,MLO clique realized they t=3.78,p<0.05,determined was statistically significant.the two groups of image quality inspection,as in x2 =10.8,p<0.05 and statistical significance.Conclusion:Low amounts they molybdenum target x line operates 35kV to the use of photographic image to improve the quality reduced by the radiation dose.
出处
《现代医用影像学》
2012年第1期43-46,共4页
Modern Medical Imageology
