摘要
目的:探讨加注生理盐水对16层螺旋CT冠状动脉成像的作用。方法:60例患者被随机分成两组,1组:注入对比剂欧乃派克120ml;2组:注入对比剂欧乃派克100ml及生理盐水40ml。所有患者均行16层螺旋CT冠状动脉增强扫描,分别测量左、右冠状动脉开口层面升主动脉、肺动脉及上腔静脉的CT值,测量左冠状动脉主干、左前降支、左回旋支及右冠状动脉的CT值,并用统计学软件SPSS分析。结果:升主动脉CT值1组显著低于2组,上腔静脉CT值1组显著高于2组。肺动脉CT值在左、右冠状动脉开口层面1组均高于2组,但差异在右冠状动脉开口层面有显著性意义,在左冠状动脉开口层面无显著性意义。各支冠状动脉CT值1组均显著低于2组。结论:加注生理盐水可以节省对比剂,降低上腔静脉及右心的密度,增加升主动脉的密度,便于更好地显示冠状动脉。
Objective：To investigate the impact of added saline in coronary angiography with 16-slico spiral CT. Methods ： Sixty patients were divided into two groups by contrast material administration： group 1（120ml Omnipaque） and group 2（100ml Omnipaque followed by 40ml saline）. All patients underwent coronary angiography with 16-slice spiral CT. The attenuation of ascending aorta, pulmonary artery and superior vena cava was recorded on the original section of left and right coronary artery. The attenuation of the left main, left anterior descending, circumflex and the right coronary artery was also assessed. The difference of attenuation was assayed by statistical SPSS software. Results： the attenuation of ascending aorta in group 1 was significantly inferior to group 2 and the attenuation of the superior vena cava in group 1 was significantly superior to group 2. The attenuation of pulmonary artery on the original section of the left and right coronary artery in group 2 was both inferior to group 1, but the difference was significant on the original section of the right coronary artery and not significant on the original section of the left coronary artery. The attenuation of the main coronary artery branches in group 1 was all significantly inferior to group 2. Conclusion： Using added saline could save the contrast material, decrease the enhancement of the superior vena cava and the right heart, increase the enhancement of the ascending aorta and display the coronary artery better.
出处
《医学影像学杂志》
2005年第10期897-899,共3页
Journal of Medical Imaging
