中国临床医学影像杂志2018，Vol.29Issue(5)：351-354,4.
不同剂量迭代重建算法对iCT胸部图像质量影响的临床研究
The clinical study of the relationship between different iterative reconstruction technique and image quality in low dose chest CT
李春志 1王文生 1张毅 1于晓晶 1张海萍1
作者信息
- 1. 中国中医科学院西苑医院放射科,北京 100091
- 折叠
摘要
Abstract
Objective:To investigate the effectiveness of reducing radiation dose in chest CT without compromising the image quality,by using iterative reconstruction technique (iDOSE4).Methods:Totally 180 subjects who underwent chest CT scanning were divided into 6 dose groups in turn.Different groups represent different scanning conditions.Compared the different tissue CT number between different groups.Results:The differences of standard deviation in lung and bone markings among A2 group,B group and C group were not statistically significant.The differences of standard deviation in lung and bone markings between A1 group and D group were not statistically significant,but this two groups have significant difference with E group and F group.The standard deviation in muscle markings between A1 group and C group,and in the main artery markings between A1 group and B group have no significant differences,but there were significant differences among other groups.And the standard deviation increased in the order of A2,B,A1 and C,D,E,F.Conclusion:Philip iCT can effectively reduce the radiation dose by using iterative reconstruction technique (iDOSE4),and 120 kV/100 mAs can be used as the suitable low-dose chest computed tomography scanning protocol.关键词
胸部疾病/体层摄影术,螺旋计算机Key words
Thoracic diseases/Tomography, spiral computed分类
医药卫生引用本文复制引用
李春志,王文生,张毅,于晓晶,张海萍..不同剂量迭代重建算法对iCT胸部图像质量影响的临床研究[J].中国临床医学影像杂志,2018,29(5):351-354,4.
