Application value of dual -source computed tomography in assessment of coronary stenosis
Li Yuejun
Yan Jifeng
Abstract：Objective To analyze the application value of dual -source computed tomography(DSCT)in assessment of coro-nary stenosis.Methods 1 02 patients with suspected coronary artery disease(CHD)treated in the Chest Hospital of Henan Prov-ince from October of 201 2 to April of 201 4 were examined by DSCT and coronary angiography(CAG)within two weeks after the onset of the disease.The diagnosis accuracy of DSCT was evaluated with DAG as the standard.Results The diagnosis results of light,moderate and severe stenosis and occlusion segments detected by DSCT and CAG were not statistically significant,and there was a positive correlation(r =0.857,P <0.001 ).The sensitivity,specificity,positive predictive value and negative pre-dictive value of DSCT on the diagnosis of coronary stenosis (more than or equal to 50%)were 91 .2% (306 /333),97.9%(91 8 /938),93.9% (306 /326),97.1 % (91 8 /945).On the basis of each coronary artery,the sensitivities of DSCT on the di-agnosis of left main coronary artery,left anterior descending branch,left circumflex artery,right coronary artery stenosis were 1 00.0%,57.1 %,77.7%,70.7% respectively,and the specificities were 96.0%,97.4%,94.4%,88.9% respectively. Conclusion The accuracy of DSCT on detecting the degree of coronary stenosis was higher and could be used as an important method for noninvasive screening of CHD.
Keywords：dual -source computed tomographycoronary angiographycoronary stenosis
Publication Date：2015-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 13-16 )