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Iranian Heart Journal، جلد ۱۹، شماره ۱، صفحات ۳۰-۳۶
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عنوان انگلیسی Comparison of Diagnostic Accuracy between Coronary CT Angiography and Conventional Coronary Angiography
چکیده انگلیسی مقاله Background: Coronary computed tomography angiography (CCTA) is a noninvasive imaging methodwith a high diagnostic value and minimal complications for evaluating coronary arteries.Therefore, in cases with low and moderate probabilities of coronary artery disease, CCTA canbe a good alternative to conventional coronary angiography (CCA). Previous studies with 64-slice CTA have tried to determine its diagnostic accuracy compared with CCA as the goldstandard. In this survey, we compared the results of 256-slice CCTA with CTA.Method: The present cross-sectional descriptive study evaluated 53 patients (36 men) undergoingCCTA and then CCA (except for 4 patients with pervious CCAs). Our primary goal was tocompare the 2 imaging methods for the evaluation of coronary lesions and their runoff.Results: In the coronary artery bypass graft group, the diagnostic accuracy of CCTA for the arterialgraft lesions (left internal mammary artery to left anterior descending) had 72.73% sensitivity,100% specificity, 100% positive predictive value, and 84.2% negative predictive value and itsdiagnostic accuracy for the venous graft lesions had 100% sensitivity, 80% to 100% specificity,80% to 100% positive predictive value, and 66.4% to 100% negative predictive value. Aproposrunoff (adequacy of perfusion), CCTA had 100% sensitivity, 63.64% specificity, 80% positivepredictive value, and 100% negative predictive value in the arterial grafts and 54% to 100%sensitivity and 100% specificity in the venous grafts. In the percutaneous coronary interventiongroup, CCTA had 90% specificity, and 75% positive predictive value, and 0% negativepredictive value in the differentiation of significant from nonsignificant in-stent restenoses.Conclusions: The diagnostic accuracy of CCTA in determining the severity of arterial graft stenosesand their runoff was similar to that reported in previous studies with 64-slice CTA. Strikingly,CCTA had low sensitivity for significant in-stent restenosis.
کلیدواژه‌های انگلیسی مقاله Coronary CT angiography, Conventional coronary angiography
نویسندگان مقاله Hanieh Nejadbahram |
Rajaie Cardiovascular, Medical, and Research Center, Iran University of Medical Sciences, Tehran, IR Iran

Majid Kiavar |
Cardiovascular Intervention Research Center, Rajaie Cardiovascular, Medical, and Research Center, Iran University of Medical Sciences, Tehran, IR Iran

Shabnam Madadi |
Cardiovascular Intervention Research Center, Rajaie Cardiovascular, Medical, and Research Center, Iran University of Medical Sciences, Tehran, IR Iran

نشانی اینترنتی http://journal.iha.org.ir/article_82802_ce049571481632dae9f24dd0e17805cf.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/162/article-162-1423882.pdf
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