Diagnostic value of dual-source CT angiography for assessment of the degree of coronary stenosis
10.13491/j.issn.1004-714X.2023.03.025
- VernacularTitle:双源CT造影术用于冠状动脉狭窄程度的诊断价值
- Author:
Yun LIAO
1
;
Lin WEI
1
;
Zhongwu LU
1
;
Yongliang LU
1
;
Yunjun TANG
1
Author Information
1. Department of Radiology, Hechi Municipal People’s Hospital, Hechi 547000 China.
- Publication Type:OriginalArticles
- Keywords:
Dual-source CT angiography;
Coronary angiography;
Coronary stenosis;
Diagnostic value
- From:
Chinese Journal of Radiological Health
2023;32(3):355-359
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the value of dual-source CT angiography for evaluating the degree of coronary stenosis. Methods A total of 110 patients with a high likelihood of coronary stenosis identified by dual-source CT angiography or conventional coronary angiography were enrolled. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of dual-source CT angiography for diagnosis of coronary stenosis were evaluated with conventional coronary angiography as a gold standard. The agreement between dual-source CT angiography and conventional coronary angiography for evaluation of coronary stenosis was evaluated using Kappa statistic. Results A total of 1 401 coronary artery segments from 110 patients were displayed on conventional coronary angiography, while 1 382 segments were successfully visualized in dual-source CT angiography (98.64%). The sensitivity, specificity, positive predictive value and negative predictive value of dual-source CT angiography were 97.9%, 97.3%, 90.4% and 99.4% for diagnosis of coronary stenosis, and there was high consistence between dual-source CT angiography and conventional coronary angiography for grading coronary stenosis (Kappa statistic = 0.87, U = 58.36, P < 0.01). In addition, the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of dual-source CT angiography were 94.7%, 96.8%, 83.7%, 99.0% and 96.5% for grading stenosis of coronary artery segments. Conclusion Dual-source CT angiography is accurate and reliable for diagnosis of coronary stenosis, which may be a non-invasive tool for assessment of coronary stenosis.
