不同碘浓度对比剂对头部CT动脉成像质量的影响研究

The influence study of different iodine concentrations on quality of CCT coronary angiography

目的:在头部CT动脉成像检查过程中应用不同碘浓度对比剂后会得到不同效果的成像,本次探究的主要目的就是探究对比剂浓度对成像质量的影响。方法:选取接诊的101例患者,经随机数字法随机分成A、B、C三组,对三组患者采用不同浓度的对比剂,比较分析扫描检查的结果。结果:A、B、C三组的对比剂浓度不断升高,颈内动脉CT值、基底动脉CT值不断增大,成像的质量越来越高;A、B、C三组出现不良反应的概率分别为9.09%、20.59%及35.29%,C组最高且明显高于A组,差异具有统计学意义(P<0.05)。结论:对比剂的浓度是影响检查扫描质量的主要因素,其浓度越高扫描质量越好但是患者出现的不良反应越多,因此应把握对比剂的使用浓度。

Objective To investigate the influence study of different iodine concentrations on quality of CCT coronary angiography. Method 101 patients were selected. They were randomly divided into A,B,C group by digital table method randomly. To analyze the results of scanography with different iodine concentrations. Results The quality of CCT coronary angiography became better and better,CT value of internal carotid artery and basilar artery became higher and higher by the concentration of iodine rising. The probability of adverse reaction in A,B,C groups were 9. 09%,20. 59%,35. 29%,that of C group was significantly higher than that of A group,the difference was statistically significant（P〈0. 05）. Conclusion The concentration of iodine is the major agent of coronary angiography quality. The quality is better by the concentrationg higher,but adverse reaction become more and more,so it is important to select the concentration.