摘要
目的 探讨在CT尿路成像（CTU）检查中应用分离团注技术提高全程尿路显示情况的优势.方法 选择行CTU检查患者60例,按随机数字表法分为观察组与对照组,每组30例,观察组在CTU检查中行分离团注技术,对照组行单次团注技术,扫描包括常规平扫、皮质期、髓质期、延迟期,延迟期进行三维重建显示全程尿路,分析比较两组成像质量.结果 对照组肾盂输尿管全程及膀胱显示优12例（40.0％,12/30）,良17例（56.7％,17/30）,可1例（3.3％,1/30）,观察组肾盂输尿管全程及膀胱显示优23例（76.7％,23/30）,良7例（23.3％,7/30）.两组优率比较差异有统计学意义（P＜0.01）.对照组输尿管起始部CT值为（238.6±82.5） HU,输尿管中下段为（245.9±112.3） HU;观察组分别为（239.0±93.8）、（235.3±74.6） HU,两组比较差异无统计学意义（P＞0.05）.两种团注技术对于尿路结石的显示在一定程度上无明显差异.结论 应用分离团注技术进行CTU检查,使第一次造影剂注射剂量相对减少,在降低患者造影剂反应的同时,又可获得优质的可用于诊断的清晰的全程尿路影像.
Objective To investigate the advantage of separate bolus injection technique in CT urography （CTU） improving the display of the whole urinary tract.Methods Sixty cases of CTU examination,were divided into observation group and control group by random digits table with 30 cases each,observation group used separate bolus injection technique and control group used single bolus injection technique.The scanning included routine scanning,cortical phase,medullary phase and lag phase.Reconstruction of lag phase displayed the whole urinary tract.Then the image quality was compared between two groups.Results The whole urinary tract showed excellent in 12 cases （40.0%,12/30）,good in 17 cases （56.7%,17/30）,normal in 1 case （3.3%,1/30） in control group,which showed excellent in 23 cases （76.7%,23/30）,good in 7 cases （23.3%,7/30） in observation group,there was significant difference in excellent rate between two groups （P 〈 0.01）.The CT value of starting of ureter was （238.6 ± 82.5） HU,middle-lower ureter was （245.9 ± 112.3） HU in control group and （239.0 ± 93.8）,（235.3 ± 74.6） HU in observation group,there was no significant difference between two groups （P 〉0.05）.There was no difference in developing of urolithiasis between two bolus injection techniques.Conclusion The application of separate bolus injection technique in CTU examination can reduce the dose of the first contrast material and contrast material reaction,and receive high-quality image of the whole urinary tract.
出处
《中国医师进修杂志》
2013年第12期18-20,共3页
Chinese Journal of Postgraduates of Medicine
