摘要
目的:探讨64层螺旋CT对冠状动脉粥样硬化斑块的诊断价值。方法:将63例临床诊断为冠心病患者根据临床表现分为二组:急性冠脉综合征(ACS)组和稳定型心绞痛(SAP)组。均行64层螺旋CT冠状动脉成像检查,对检出的斑块进行定性分析,并对各种性质斑块所引起的管腔狭窄程度进行分析。结果:63例中ACS组44例,检出软斑块30个,中等密度斑块18个,钙化斑块11个;稳定型心绞痛组19例中检出软斑块6个,中等密度斑块6个,钙化斑块18个,非钙化斑块(软斑块和中等密度斑块)与冠心病危险性有明显的相关性(P<0.05);非钙化斑块导致管腔狭窄程度:轻度狭窄14处,中度狭窄14处,重度狭窄32处;钙化斑块导致管腔狭窄程度:轻度狭窄14处,中度狭窄7处,重度狭窄8处,不同性质斑块与其导致管腔狭窄程度无明显的相关性(P>0.05)。结论:64层螺旋CT冠状动脉成像能够对冠状动脉粥样斑块进行定性分析,可作为评价冠心病危险性度的一种检查技术。
Objective： To evaluate 64-slice spiral computed tomography in diagnosis of coronary atherosclerotic plaque. Methods：63 patients with coronary heart disease （CHD） were divided into two groups： acute coronary syndrome （ACS） and stable angina pectoris （SAP）. All patients underwent 64-slice spiral computed tomography coronary angiography,the coronary plaques detected were analyzed qualitatively and the degree of lumen stenosis was analyzed as well. Results： Of the 63 patients, there were 44 patients with ACS including pliable plaques （n=30）, moderately attenuated plaques （n=18） and calcified plaques （n 11）. Of the 19 patients with SAP,pliable plaques （n=6）,moderately attenuated plaques （n=6） and calcified plaques （n=18） were detected. According to Spearman correlation coefficient calculated, significant correlation was existed between non-calcified plaques （pliable plaques and moderately attenuated plaques） and risk factors of CHD （P〈0.05）. Of the degree of lumen stenosis caused by non-calcified plaques：there were mild stenosis （n=14）, moderate stenosis （n= 14） and serious stenosis （n=32）. The degree of lumen stenosis caused by calcified plaques were mild stenosis （n=14）,moderate stenosis （n=7） and serious stenosis （n=8）. No correlation was existed between the nature of plaques and the degree of lumen stenosis （P〉0.05）. Conclusion： 64-slice spiral computed tomography coronary angiography is a technique to qualitatively analyze atherosclerotic plaque as well as to predict the risk of CHD.
出处
《放射学实践》
北大核心
2009年第5期487-490,共4页
Radiologic Practice
