CT理论与应用研究2012，Vol.21Issue(2)：321-327,7.
前门控CT冠脉造影低体质量指数与图像质量相关性研究
Correlation Analysis between Low Body Mass Index and Image Quality Using PGA CT Technique
摘要
Abstract
Objective：To evaluate the relationship between body mass index（BMI）and image quality for fixed tube current and tube voltage.Methods：Forty patients with average body mass index（BMI）20.12 kg/m2,average age 53.16 years were included in this study,using PGA scan technique（tube voltage was 120 kV and tube current was 400 mA）.All patients were evaluated for mean attenuation,noise,signal-to-noise ratio（SNR）in aortic root. To evaluate the relationship between body mass index（BMI）and image quality using Pearson correlation analysis. AP value below 0.05 was considered to be statistically significant.Results：The BMI was statistically significant influence on noise,signal-to-noise ratio（P=0.000）.The BMI was no statistically significant influence on the mean attenuation（P=0.314）.Conclusion：The use of low BMI adapted mA selection method can obtain consistent image quality in abstracto and may reduced effective dose.关键词
体层摄影术/X线计算机/冠状动脉/体质量指数/图像质量Key words
tomography/X-ray computed/coronary artery/body mass index/image quality分类
医药卫生引用本文复制引用
赵磊,王泽锋,刘挨师..前门控CT冠脉造影低体质量指数与图像质量相关性研究[J].CT理论与应用研究,2012,21(2):321-327,7.基金项目
内蒙古财政厅科研项目 （）
内蒙古高等学校科学研究项目 （）
