摘要
目的探寻使用64层CT冠状动脉成像最佳的对比剂注射方法。方法将接受64层CT冠状动脉检查的连续30位患者中,分出10位体重低于70kg(A组)和20位体重高于70kg的患者(随机均分成两组B1和B2组),其中A组及B1组注射50ml对比剂(注射速度4.5ml/s),B2组注射70ml对比剂(注射速度5ml/s)。分别比较三组患者的主动脉及冠状动脉主干、主要分支的强化程度。结果A组与B2组患者各段血管的增强程度没有显著性差异,B1组患者部分血管的增强程度明显低于B2组。结论64层CT冠状动脉成像对比剂注射剂量优化方案是可行的,其优越性是明显的。
Objective To investigate the optimum contrast medium injection plan of coronary angiography by 64-slice CT. Methods Thirty consecutive patients undergoing coronary angiography by 64-slice CT were divided into three groups, namely group A, group B1 and group B2, each group included 10 patients. Patients in group A were less than 70 kg, patients in group B1 and group B2 were heavier than 70 kg. Group A and group B1 were injected 50 ml contrast medium with speed of 4.5 ml/s. Group B2 was injected 70 ml contrast medium with speed of 5 ml/s. The enhanced effect of three groups of patient in aorta, the trunk and branch of coronary artery were compared. Results The difference of enhancement in every vessel between group A and group B2 was not significant. Enhancement in partial vessel in group B1 was significantly less than in group B2. Conclusion The optimum contrast medium injection plan of coronary angiography by 64-slice CT was feasible.
出处
《中国医学影像技术》
CSCD
北大核心
2006年第10期1464-1467,共4页
Chinese Journal of Medical Imaging Technology
