中国现代医生Issue(10)：113-116,4.
64层双源CT管电流自动调节技术配合降噪处理在胸部低剂量CT中的应用价值
Application value of automatic tube current modulation with noise reduc-tion in low dose CT with 64-slices spiral dual-source CT
摘要
Abstract
Objective To evaluate the application value of automatic tube current modulation (ATCM) in low dose chest scaning with 64-slices spiral dual-resource CT. Methods Randomly selected healthy people to participate in our hospital from March 2014 to July 2014 in subjects with chest CT examination were 200, 100,received low dose spiral CT examination,as the A group;the other 100 underwent routine CT plain scan,as the B group,All CT images were analyzed by two radiologists with double blind method.Image quality scores (IQS)of lung apex,middle lung and lower lung were made,the image standard deviation(SD)was measured,and the CTDIvol was also recorded,and the statistical analysis was performed. Results SD values in lung apex,middle and lower lungs was (34.34±2.17),(30.63±0.74),(30.74±1.21)in group A,and (36.82±2.51)、(34.15±1.98),(31.69±1.93 )in group B,as well as the corresponding IQS of these three sites were(1.83±0.36),(1.59±0.38),(1.64±0.34)in group A,and(2.31±0.47),(1.68±0.42),(1.73±0.48)in group B,respectively. SD value and IQS of group A were lower than those of group B in lung apex(P<0.05). Conclu-sion The application of ATCM in low dose chest CT scanning plus noise suppression can provide more homogeneous images with better image quality.关键词
低剂量/体层摄影术/X线计算机/自动管电流调节/图像质量Key words
Low-dose/Tomography/X-ray computed/Automatic tube current modulation/Image quality分类
医药卫生引用本文复制引用
陈淑君,徐裕金,王维军,李贤兴,江海涛..64层双源CT管电流自动调节技术配合降噪处理在胸部低剂量CT中的应用价值[J].中国现代医生,2015,(10):113-116,4.基金项目
浙江省医药卫生一般研究计划（2014KYA009）；浙江省医药卫生科技计划 （）
