飞利浦256层iCT在冠状动脉狭窄诊断中的应用及其临床价值

目的探究飞利浦256层极速CT(iCT)在冠状动脉CT血管造影(CTA)及管腔狭窄诊断中的应用价值。方法收集2017年1月~2018年10月疑诊冠心病于我院行飞利浦256层iCT检查,并在随后1周内行常规冠状动脉血管造影(CAG)检查的患者48例,以CAG结果为金标准,评价CTA诊断冠状动脉狭窄程度的敏感性、特异性及准确性。结果 CTA诊断冠状动脉狭窄的敏感性、特异性及准确性分别为82.93%、94.98%、90.71%,Kappa值为0.793,一致性较好;CTA诊断轻度、中度、重度冠状动脉狭窄的敏感性、特异性、准确性及Kappa值均随狭窄程度的增加而递增,诊断准确性较高。结论应用飞利浦256层iCT行CTA检查对冠心病的筛查具重要临床价值,可减少部分患者不必要的CAG有创检查,在临床推广。

The application and clinical value of Philips 256-slice iCT in the diagnosis of coronary artery stenosis

Objective To investigate the value of Philips 256-slice iCT(iCT) in coronary angiography(CTA) and the diagnosis of luminal stenosis. Methods A total of 48 patients with suspected coronary heart disease who were examined with 256-slice iCT in the hospital from January 2017 to October 2018 and who underwent conventional coronary angiography(CAG) in the following week were enrolled in the study. With the results of CAG as the golden standard, the sensitivity, specificity and accuracy of CTA in the diagnosis of coronary artery stenosis were evaluated. Results The sensitivity, specificity, accuracy and Kappa value of CTA in the diagnosis of coronary artery stenosis were 82.93%, 94.98%, 90.71% and 0.793, respectively, with good consistency. The sensitivity, specificity, accuracy and Kappa value of CTA for diagnosis of coronary artery stenosis increased with the severity of the disease, and the diagnostic accuracy was high. Conclusion The application of Philips 256-slice iCT in CTA is of great clinical value in screening coronary heart disease, which can reduce unnecessary CAG invasive examination in some patients.