文章摘要
王小强,孙占国,史志涛,陈月芹.前门控大螺距扫描在双源CT冠状动脉成像中的应用[J].济宁医学院学报,2017,40(1):32-35
前门控大螺距扫描在双源CT冠状动脉成像中的应用
Application of high-pitch spiral acquisition on dual-source CT coronary angiography
投稿时间:2016-12-10  
DOI:10.3969/j.issn.1000-9760.2017.01.008
中文关键词: 体层摄影术;X线计算机;冠状动脉造影;大螺距;辐射剂量
英文关键词: Tomography;X-ray Computed;Coronary angiography;High-pitch;Radiation exposure
基金项目:山东省高等学校科技计划项目(J14LL54);济宁医学院科研计划项目(JY2013KJ044)
作者单位E-mail
王小强 济宁医学院附属医院, 济宁 272029  
孙占国 济宁医学院附属医院, 济宁 272029 yingxiangszg@163.com 
史志涛 济宁医学院附属医院, 济宁 272029  
陈月芹 济宁医学院附属医院, 济宁 272029  
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中文摘要:
      目的 评估128层双源CT(128s-DSCT)前门控大螺距扫描(Flash扫描)行冠状动脉CT成像(CCTA)的图像质量和辐射剂量。方法 将符合纳入标准的100例拟行CCTA检查的可疑冠心病患者随机分为研究组(n=50,采用前门控Flash扫描)和对照组(n=50,采用前门控序列扫描),比较两组冠状动脉图像质量及有效辐射剂量。结果 研究组整体图像质量低于对照组,差异有统计学意义(P< 0.05);而研究组、对照组可用于诊断的血管段所占比例分别为98.72%、99.04%,差异无统计学意(P> 0.05)。研究组和对照组平均辐射剂量分别为(1.06±0.22)mSv、(3.08±0.88)mSv,差异有统计学差异(P< 0.05)。结论 128s-DSCT Flash扫描冠状动脉成像能在保证诊断需要的前提下明显降低辐射剂量。
英文摘要:
      Objective To investigate the image quality,radiation dose of prospective ECG-gated high-pitch acquisition using 128-slice dual-source CT (128s-DSCT) coronary angiography.Methods According to inclusive criteria,100 patients with suspected coronary artery disease(CAD) undergoing 128s-DSCT coronary angiography were enrolled in this study and randomly divided into study group(50 cases,undergoing Flash acquisition) and control group (50 cases,undergoing sequential acquisition).The image quality (IQ) of coronary artery,and effective radiation dose were compared between the two groups.Results The IQ of study group was lower than that of control group(P< 0.05),while the proportion of coronary segments with diagnosable IQ in study group and control group were 98.72% and 99.04% respectively,and no significant difference was observed between the two groups (P> 0.05).The effective radiation dose of study group (1.06±0.22)mSv was lower than control group (3.08±0.88)mSv,with significant difference (P< 0.05).Conclusion 128s-DSCT Flash model coronary angiography with diagnosable image quality is able to reduce radiation dose obviously.
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