王银玉

    【摘要】目的：观察低剂量扫描技术应用在冠状动脉CT血管造影中的诊断价值。方法：本次从冠心病实施冠状动脉CT血管造影检查患者中共计选取70例，通过数字随机法实施分组，每组35例。探究组应用低剂量扫描(100kV)，一般组应用常规扫描(120kV)，对比两组图像质量客观评分、图像增强CT值(RCA、LAD和LCX)评分、图像噪声(RCA、LAD和LCX)评分和患者接受辐射剂量(CTDIvol、DLP和ED)。结果：探究组图像质量客观评分相比一般组差异不大，无对比意义(P>0.05)；探究组图像增强CT值(RCA、LAD和LCX)评分与一般组相近，无统计学意义(P>0.05)；探究组图像噪声(RCA、LAD和LCX)评分与一般组无差异，对比无意义(P>0.05)；探究组辐射剂量(CTDIvol、DLP和ED)相比一般组较低，存在明显对比差异性(P<0.05)。结论：冠状动脉CT血管造影中为患者采取低剂量扫描能够获得与高剂量同等的扫描图像效果，并减少辐射剂量。

    【关键词】冠状动脉CT；增强CT；低剂量扫描；辐射

    Analysis of the implementation effect of coronary CT angiography with low-dose scanning technology

    WANG Yinyu

    Changsha Economic Development Zone Hospital， Changsha， Hunan 410100， China

    【Abstract】Objective：To observe the diagnostic value of low-dose scanning technique in coronary CT angiography. Methods：A total of70 patients with coronary artery disease undergoing coronary artery CT angiography were selected，and they were divided into groups by digital randomization ......