Abstract：Objective To observe and analyze the diagnostic value of 64-slice spiral computed tomography(CT)coronary angiography in coronary heart disease patients with atypical chest pain.Methods Eighty patients with atypical chest pain who were treated in our hospital from October 2015 to October 2017 were enrolled in this study.Coronary artery imaging with 64-slice spiral CT was used for the diagnosis,and the accuracy,specificity and sensitivity of the diagnosis method were evaluated based on the results of selective coronary angiography.Results The accuracy,sensitivity and specificity of 64-slice spiral CT coronary angiography were 87.50%,87.50%,and 87.50%,respectively.The comparsion of accuracy,specificity and sensitivity between 64-slice spiral CT coronary angiography and selective coronary angiography showed statistically significant difference (χ2=10.6667,P=0.0011; χ2=2.1333,P=0.1441; χ2=8.5333,P=0.0035).The diagnosis rates of mild,moderate,and upper stenosis using 64-slice spiral CT coronary angiography were 75.56%,93.98%,and the difference between the two data was significant(χ2=9.0523,P=0.0026).The comparsion of sensitivity with 64-slice spiral CT coronary angiography used to detect three coronary vascular lesions in the right coronary artery,left circumflex artery,and left anterior descending coronary artery showed statistically significant difference (χ2=28.3080,P=0.0001),while there was no statistically significant difference in specificity and accuracy (χ2=0.0756,P=0.9629;χ2=2.8489,P=0.2406).Conclusion In the diagnosis of atypical chest pain patients with coronary heart disease,the effect of 64-slice spiral CT coronary angiography is acceptable,but because of its non-invasive advantages,it can be used as a basic diagnostic identification method.
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