中国临床医学2017，Vol.24Issue(2)：257-259,3.DOI:10.12025/j.issn.1008-6358.2017.20160858
低管电压结合低碘对比剂在前门控双源CT冠状动脉CTA中的应用
Clinical application of low tube voltage and low-iodine-concentration contrast agent in prospective ECC-gated dual-source computed tomography coronary angiography
刘锴 1陆秀良 1周潇峰 1顾君英 1曾蒙苏 1梁亮1
作者信息
- 1. 复旦大学附属中山医院放射科,上海市影像医学研究所, 上海 200032
- 折叠
摘要
Abstract
Objective:To explore the clinical application and effect of prospective ECC-gated dual-source computed tomography coronary angiography (CTCA) with low tube voltage of 100 kV and low-iodine-concentration contrast agent to reduce radiation dosage.Methods:Totally 32 patients with coronary heart disease received dual-source computed tomography coronary angiography in the studyCTCA.Prospective ECC-gated technique with the tube voltage of 100 kV and 300 mgI/mL iodine contrast agent was used.CT value of main segments of coronary arteries was measured.The scores of image quality and radiation dosage were assessed and analyzed.Results:CT value of every studied segment of coronary arteries was over 300 HU.The score of image quality was five in 289 segments, four in 148 segments, as well as three in 34 segments.The mean CT dose index volume (CTDIvol) and effective dose (DE) were 10.48±1.90 and (1.64±0.26) mGy.Conclusions:Prospective ECG-gated dual-source CCTA with low tube voltage of 100 kV and low-iodine-concentration contrast agent can reduce the radiation dosage without reducing image quality.关键词
双源CT/前门控扫描/辐射剂量Key words
dual-sourcCT/prospectivECG-gatesan/radiation dosage分类
医药卫生引用本文复制引用
刘锴,陆秀良,周潇峰,顾君英,曾蒙苏,梁亮..低管电压结合低碘对比剂在前门控双源CT冠状动脉CTA中的应用[J].中国临床医学,2017,24(2):257-259,3.
