Head and Neck Imaging
Imaging Features and Clinical Significance of CT in Different Degrees of Coronary Stenosis
Author：YANG Zhi-qiang, YUAN Mu
affiliation：CT Room, the First People's Hospital of Shangqiu, Shangqiu 476100, Henan Province, China
PDFAbstract
Objective To study the imaging features and clinical significance of CT in different degrees of coronary stenosis. Methods From January 2013 to January 2015, 50 patients with suspected coronary heart disease in our hospital were examined by multislice spiral CT (MSCT). The imaging features of coronary plaque, calcification and stenosis were observed. With the results of coronary angiography as the standard, the sensitivity, specificity, positive and negative predictive values of CT in the diagnosis of different degrees of coronary stenosis were analyzed. Results MSCT of coronary stenosis showed calcified plaque, soft plaque and mixed plaque. With the results of coronary angiography as the golden standard, the sensitivity, specificity, positive and negative predictive values of MSCT in the diagnosis of mild coronary stenosis were 85.3%, 98.3%, 87.6% and 97.9%, in moderate stenosis were 91.7%, 99.1%, 94.8% and 98.7% and in diagnosis of severe stenosis were 95.6%, 99.5%, 91.5% and 99.8%. Conclusion The sensitivity and specificity of MSCT are high in the diagnosis of coronary stenosis, and the severer coronary stenosis is, the higher diagnostic sensitivity and specificity are.
【Keyword】Coronary Stenosis; Multi-slice Spiral CT; Imaging Feature; Diagnostic Value
【Chart number】R445.3；R543.3
【Document Identification Number】A
【DOI】10.3969/j.issn.1672- 5131.2017.03.018
Chinese journal of CT and MRI
th15Volume， th 3 Issue
2017Year03Month
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