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  • Title: [Diagnostic value of 128-slice CT coronary angiography in comparison with invasive coronary angiography].
    Author: Chen BX, Ma FY, Wen ZY, Luo W, Zhao XZ, Kang F, Zhou QH, Ruan JH.
    Journal: Zhonghua Xin Xue Guan Bing Za Zhi; 2008 Mar; 36(3):223-8. PubMed ID: 19099978.
    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 irregular rhythm, vessel calcification or tachycardia. Compared with invasive coronary angiography, segment-based 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 in-stent restenosis after coronary stenting and could be considered as a valuable noninvasive technique for screening coronary artery disease in suspected patients.
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