螺旋CT冠脉成像在冠心病中的诊断意义
2016-05-14吴作莉
吴作莉
[摘要] 目的 分析螺旋CT冠脉造影对冠心病确诊和动脉狭窄程度的判断准确性。 方法 整群选择于2013年4月—2015年3月该院首次就诊的疑似冠心病患者53例。所有患者均进行螺旋CT冠脉成像,并在10 d后行经皮选择性冠状动脉造影术。以经皮选择性冠脉造影术为参照 ,50%狭窄为阳性,评估螺旋CT冠脉造影的准确性。 结果 螺旋CT冠脉成像对冠心病诊断的灵敏度为94.31%,特异度为100%,准确度98.38%,k值为0.9611,具有高度一致性。 结论 螺旋CT冠脉成像诊断准确度接近经皮选择性冠状动脉造影术,是一种无创的、可靠的冠心病筛查手段。
[关键词] 冠心病;动脉造影;螺旋CT;经皮选择性冠状动脉造影术;狭窄程度
[中图分类号] R541.4 [文献标识码] A [文章编号] 1674-0742(2016)02(b)-0179-02
[Abstract] Objective To analyze the accuracy of spiral CT coronary angiography in diagnosis of coronary heart disease and in judgment of artery stenosis degree. Methods 53 cases of patients suspected coronary heart disease treated in our hospital for the first time from April 2013 to March 2015 were selected and were given spiral CT coronary angiography, and were given percutaneous selective coronary angiography after 10d, 50% stenosis was positive referring to the percutaneous selective coronary angiography, the accuracy of spiral CT coronary angiography was evaluated. Results The sensitivity, specificity, accuracy and k value of spiral CT coronary angiography in diagnosis of coronary heart disease were respectively 94.31%, 100%, 98.38% and 0.9611 with high consistency. Conclusion The diagnostic accuracy of spiral CT coronary angiography is similar to that of percutaneous selective coronary angiography, and it is a noninvasive and reliable method for the screening of coronary heart disease.
[Key words] Coronary heart disease; Angiography; Spiral CT; Percutaneous selective coronary angiography; Stenosis degree
冠心病的主要病理变化为冠状动脉粥样硬化、血管因斑块而狭窄甚至堵塞,该病诊断主要依赖于患者典型的临床表现和相关的辅助检查[1]。临床上冠状动脉血管狭窄程度直接关系到治疗方案的选择,而经皮选择性冠状动脉造影术诊断因其创伤性,不能作为冠心病筛选手段[2]。CT作为无创检查,近年来不断改进使得应用领域也不断扩大。该研究对2013年4月—2015年3月该院首次就诊的疑似冠心病患者53例行螺旋CT冠脉造影,并以皮选择性冠状动脉造影术结果为参照,旨在探讨CT冠脉造影的临床诊断价值,现报道如下。
1 资料与方法
1.1 一般资料
整群选择2013年4月—2015年3月于该院首次就诊的疑似冠心病患者53例,其中男32例,女21例,年龄46~83岁,平均(65.7±7.3)岁。入院时伴心前区疼痛36例,无症状17例(体检超声检查或心电图有心肌缺血表现)。……
