MSCT在血管内超声判断冠状动脉临界病变及斑块性质准确性评价中的应用  

Application of MSCT in the evaluation of accuracy for judging coronary critical lesions and coronary plaque by intravascular ultrasound

作　　者：陈亚伟[1] 许巧玲[1] 张欣欣[1] 邸杰[1] 杨蕾[1] 许倩[1] CHEN Ya-wei;XU Qiao-ling;ZHANG Xin-xin(Department of Cardiology, The First Center Hospital of Baoding, Baoding 071000, China)

机构地区：[1]保定市第一中心医院心内科,河北保定071000

出　　处：《中国医学装备》2017年第8期47-49,共3页China Medical Equipment

摘　　要：目的:探讨血管内超声在64排螺旋CT判断冠状动脉临界病变及冠状动脉斑块性质准确性评价中的应用价值。方法:选取医院收治的105例心血管疾病患者(378个冠状动脉节段)的临床资料进行回顾性分析,按照数表法将其随机分为血管内超声(IVUS)组(50例,189个冠状动脉节段)和64排螺旋CT(MSCT)组(55例,189个冠状动脉节段),对两组患者的诊断结果进行统计分析。结果:IVUS组患者的189个冠状动脉节段中,临界病变99处;在108个斑块中有39个为钙化斑块,40个为纤维斑块,29个为脂质斑块。MSCT诊断钙化斑块的灵敏度显著高于脂质斑块、纤维斑块,差异有统计学意义(x^2=5.02,x^2=7.38;P<0.05),诊断脂质斑块、纤维斑块的灵敏度之间差异无统计学意义(x^2=2.71,P>0.05);MSCT诊断脂质斑块、纤维斑块、钙化斑块的特异度之间的差异均无统计学意义(x^2=1.32,P>0.05)。钙化斑块的CT值显著高于脂质斑块、纤维斑块,而纤维斑块的CT值又显著高于脂质斑块,差异有统计学意义(t=4.303,t=3.182,t=2.776;P<0.05)。结论:IVUS在MSCT判断冠状动脉临界病变及冠状动脉斑块性质准确性的评价中,具有较高的应用价值。Objective:To explore the application value of intravascular ultrasound in the evaluation of accuracy of64-slice spiral CT for judging critical coronary lesions and coronary plaque.Methods:The clinical data of105patients(378segments of coronary artery)were researched by using retrospective study and they were randomly divided into intravascular ultrasound group(IVUS group,n=50,189segments of coronary artery)and64-slice spiral CT group(MSCT group,n=55,189segments of coronary artery),and the diagnosis results of the two groups were statistically analyzed.Results:In the189segments of coronary artery of the IVUS group,there were99critical lesions were found.And in the108plaques of189segments of coronary artery,the numbers of calcification plaque,fiber plaque and lipid plaque were39,40and29,respectively.The diagnostic sensitivity of MSCT for calcified plaque was significantly higher than lipid plaque and fibrous plaque(x2=5.02,x2=7.38,P<0.05),respectively.While the difference of the diagnostic sensitivity of MSCT between lipid plaque and fibrous plaque was not significant(x2=2.71,P>0.05).The difference of the diagnostic specific of MSCT among lipid plaque,fibrous plaque and calcified plaques were not significant(x2=1.32,P>0.05).Besides,the CT value of calcified plaque were significantly higher than lipid plaque and fibrous plaque,respectively,while the CT value of fibrous plaque was significantly higher than lipid plaque(t=4.303,t=3.182,t=2.776,P<0.05).Conclusion:Intravascular ultrasound in the evaluation of accuracy of64-slice spiral CT for judging critical coronary lesions and coronary plaque has higher application value.

关 键 词：血管内超声 64排螺旋CT 冠状动脉临界病变 冠状动脉斑块性质 准确性 

分 类 号：R814.42[医药卫生—影像医学与核医学]