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目的分析64层螺旋CT诊断不同程度冠状动脉狭窄的临床价值。方法选取宜都市第一人民医院2015年11月—2016年9月收治的疑似冠心病患者40例,均接受64层螺旋CT检查,并开展冠状动脉造影检查,比较64层螺旋CT对不同程度冠状动脉狭窄诊断准确性、灵敏度、特异度、阳性预测值、阴性预测值。结果 64层螺旋CT对轻度、中度、重度冠状动脉狭窄诊断准确性、特异度比较,差异无统计学意义(P>0.05);64层螺旋CT对中度、重度狭窄灵敏度高于轻度狭窄(P<0.05);64层螺旋CT对重度冠状动脉狭窄阳性预测值高于中度、轻度狭窄,重度狭窄阴性预测值低于轻度、中度狭窄(P<0.05)。结论在冠状动脉狭窄程度诊断中,64层螺旋CT具有较高的诊断价值,可为疾病诊断、治疗措施的制定、预后评估提供依据。
Objective To analyze the clinical value of 64-slice spiral CT in the diagnosis of coronary artery stenosis. Methods Forty patients suspected of having coronary heart disease who were treated in Yidu First People’s Hospital from November 2015 to September 2016 were examined by 64-slice spiral CT and coronary angiography. Comparisons of 64-slice spiral CT in different degree Arterial stenosis diagnostic accuracy, sensitivity, specificity, positive predictive value, negative predictive value. Results The accuracy and specificity of 64-slice spiral CT in the diagnosis of mild, moderate and severe coronary artery stenosis were not significantly different (P> 0.05). The sensitivity of 64-slice spiral CT in moderate and severe stenosis was higher than that of mild (P <0.05). The positive predictive value of 64-slice spiral CT for severe coronary artery stenosis was higher than that of moderate and mild stenosis. The negative predictive value of severe stenosis was lower than that of mild and moderate stenosis (P <0.05). Conclusion In the diagnosis of coronary artery stenosis, 64-slice spiral CT has a high diagnostic value, which can provide basis for the diagnosis of disease, the formulation of treatment measures and the prognosis evaluation.