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Clinical Value of Multi-slice Spiral CT Angiography (CTA) in the Diagnosis of the Degree of Coronary Artery Disease

Author：LV Xiao-lei

affiliation：The First People's Hospital of Cardiology,Kunshan 215300, Jiangsu Province, China

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Abstract

Objective To investigate the application value of multi-slice spiral CT angiography (CTA) in the diagnosis of coronary artery disease. Methods 98 patients with probable coronary heart disease (CHD) were selected as the research objects. The 128- slice spiral CTA was performed. The results of selective coronary arteriography (CAG) were taken as the golden standard to evaluate the accuracy, sensitivity and specificity of CAG and the diagnosis of the degree of coronary artery stenosis. Results With CAG as the gold standard, CTA diagnosis showed that 77 cases were positive and 22 cases were negative. The diagnostic accuracy rate was 90.82%, sensitivity 95.71% and specificity 78.57%. CTA diagnosis showed that 974 segments were normal, 115 segments were mild stenosis, 107 segments were moderate stenosis and 90 segments were severe stenosis. The overall accuracy was 87.64%. Conclusion CTA has limitations in the diagnosis of coronary artery disease.

【Keyword】Coronary Artery; 128 Slice; Multi-slice Spiral CT Angiography; Degree of Lesion; Accuracy Rate

【Chart number】R541.4

【Document Identification Number】A

【DOI】10.3969/j.issn.1672-5131.2015.10.018

Chinese journal of CT and MRI

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