64层螺旋CT冠状动脉成像对冠心病早期的诊断价值

Value of 64-slice Spiral CT Coronary Artery in Early Diagnosis of Coronary Heart Disease

目的观察分析64层!螺旋CT冠状动脉成像(64-slice spiral CT coronary artery,64SCTCA)对冠心病早期诊断的价值。方法回顾2009年1月至2013年1月在我院确诊的102例惠州市沿海地区居民冠心病患者资料,分析其64SCTCA资料并与冠状动脉造影(coronary artery angiography,CAG)结果相比较,观察64SCTCA的敏感性、特异性、阴/阳性预测值等指标。结果 64SCTCA和CAG在检出≥50%狭窄节段数方面,未见显著差异(χ2=0.04,P>0.05);以CAG为金标准,64SCTCA显示冠状动脉狭窄情况的敏感性、特异性、阳性预测值和阴性预测值分别为90.55%、97.86%、92.00%和97.45%。结论 64SCTCA在评估冠状动脉狭窄情况和冠心病的筛查、早期诊断方面,具有安全可靠、风险小、无创性等特点,适于临床推广应用。

Objective To observe and analyze the value of 64 - slice spiral CT coronary artery in early diagnosis of coronary heart disease. Methods Data of 102 patients with coronary heart disease in coastal areas in Huizhou were re- viewed from January 2009 to January 2013. The 64SCTCA data was analyzed and compared with CAG to observe the sus- ceptibility, specificity, positive predictive value and negative predictive value of 64SCTCA. Results No significant differences were found between 64SCTCA and CAG in terms of the narrow segment of over 50% （X^ = 0. 04, P 〉 0. 05）. By the standard of CAG, the 64SCTCA showed the susceptibility, specificity, positive predictive value and negative pre- dictive value of coronary artery stenosis as 90. 55%, 97.86%, 92. 00%, and 97.45%, respectively. Conclusions 64SCTCA is safe, of low risk and non - invasive in assessing coronary artery stenosis and screening coronary heart disease and early diagnosis, so it is suitable for clinical application and popularization.