Diagnostic value of 128-slice CT coronary angiography in comparison with invasive coronary angiography
10.3321/j.issn:0253-3758.2008.03.009
- VernacularTitle:128层螺旋CT冠状动脉成像与选择性冠状动脉造影诊断冠心病价值的比较
- Author:
Bu-Xing CHEN
1
;
Feng-Yun MA
;
Zhi-Yong WEN
;
Wei LUO
;
Xi-Zhe ZHAO
;
Feng KANG
;
Quan-Hong ZHOU
;
Jian-Hong RUAN
Author Information
1. 北京电力医院
- Keywords:
Coronary disease;
Tomography,X-ray computed;
Stents;
Coronary angiography
- From:
Chinese Journal of Cardiology
2008;36(3):223-228
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the diagnostic value of non-invasive 128-slice computed tomography coronary angiography(CTA)in comparison with invasive coronary angiography.Methods 128-slice CTA and invasive coronary angiography were performed in 78 unselected consecutive patients(63 patients with suspected coronary artery disease and 15 patients with previous coronary stenting,56 males,mean age 61±10 years)and ＞50% reduction of minimal lumen diameter was defined as significant coronary stenosis.Results Fifty-eight out of 879 segments(7%)from CTA were not assessable because of irreguldr rhythm,vessel calcification or tachycardia.Compared with invasive coronary angiography,segmentbased analysis from the 821 segments showed the sensitivity by CTA was 87%,specificity 97%,PPV 83% and NPV 97%.Four out of 22 stents implanted in 15 patients were not assessable by CTA because of poor image quality.Compared with invasive coronary angiography,the sensitivity of diagnosing in-stent restenosis by CTA was 100%,specificity 77%,PPV 63% and NPV 100% for the remaining 18 stents-Conclusions One hundred and twenty-eight-slice CTA has a high accuracy for detecting coronary artery disease and instent restenosis after coronary stenting and could be considered as a valuable noninvasive technique for screening coronary artery disease in suspected patients.
