摘要
目的探讨双源64排CT对冠脉狭窄程度评价的准确性及应用价值。方法对比分析85例临床拟诊为冠心病患者的双源CT(DSCT)冠脉成像及经导管冠状动脉造影(CAG)资料,以CAG结果为金标准,评价DSCT诊断冠脉狭窄程度≥50%的准确性。结果 DSCT诊断冠心病的敏感度为63.6%、特异度为90.7%、阳性预测值为77.4%、阴性预测值为83.2%、准确度为81.6%。ROC曲线下面积为0.803,诊断准确度达到中等。结论 DSCT诊断冠脉狭窄≥50%的准确性受一定因素影响,能达到中等水平,是一种简便易行、安全有效的无创性检查方法。
Objective To explore the clinical value and positioning capability of dual-source 64 CT（DSCT） in coronary stenosis.Methods Comparing the dual-source 64-slice CT（DSCT） with coronary angiography（CAG） data which 85 patients would been diagnosis for coronary heart disease in the clinical.For CAG results as the gold standard,then evaluating the DSCT diagnostic coronary stenosis≥50% accuracy.Results DSCT sensitivity was 63.6%,specificity was 90.7%,positive predictive value was 77.4%,negative predictive value was 83.2% and the accuracy was 81.6%.The area under the ROC curve was 0.803,achieved middle-diagnostic accuracy.Conclusion DSCT is affected by certain factors in the diagnosis of coronary stenosis≥50%.It is a simple,safe and effective noninvasive method.
出处
《宁夏医学杂志》
CAS
2012年第10期965-966,共2页
Ningxia Medical Journal
关键词
冠心病
冠状动脉造影
双源CT
Coronary heart disease
Coronary angiography
Dual-sourc CT
