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Noninvasive evaluation of coronary artery bypass graft patency using three-dimensional angiography obtained with contrast-enhanced electron beam CT

 Jong-Won Ha  ;  Seung-Yun Cho  ;  Won-Heum Shim  ;  Namsik Chung  ;  Yangsoo Jang  ;  Hyang-Mi Lee  ;  Kyu-Ok Choe  ;  Wook-Jin Chung  ;  Seung-Hyuck Choi  ;  Kyung-Jong Yoo  ;  Meyun-Shick Kang 
 American Journal of Roentgenology, Vol.172(4) : 1055-1059, 1999 
Journal Title
 American Journal of Roentgenology 
Issue Date
Coronary Angiography* ; Coronary Artery Bypass* ; Female ; Humans ; Image Processing, Computer-Assisted* ; Internal Mammary-Coronary Artery Anastomosis ; Male ; Middle Aged ; Saphenous Vein/diagnostic imaging ; Saphenous Vein/transplantation ; Sensitivity and Specificity ; Tomography, X-Ray Computed*/methods ; Vascular Patency
OBJECTIVE: The purpose of this study was to determine the accuracy of three-dimensional coronary angiography obtained with electron beam CT in the assessment of the patency of coronary artery bypass grafts. SUBJECTS AND METHODS: Twenty-five patients who had undergone coronary artery bypass graft surgery were included. All patients underwent electron beam CT and conventional coronary angiography for the evaluation of the status of their bypass grafts. Three-dimensional reconstructions of the heart and bypass grafts were compared with selective angiographic images of the bypass grafts. RESULTS: Fifty-seven saphenous vein grafts and 22 left internal mammary artery grafts were evaluated for occlusion or patency. Sensitivity and specificity of electron beam CT in revealing left internal mammary artery patency were 80% and 82.4%, respectively. Sensitivity and specificity of electron beam CT in revealing saphenous vein graft patency were 91.7% and 91.1%, respectively. Sensitivity and specificity of electron beam CT for evaluating saphenous vein grafts according to coronary area were as follows: saphenous vein grafts to left anterior descending artery, 100% and 100%, respectively; to diagonal branch, 100% and 100%; to left circumflex artery, 100% and 88.9%; and to right coronary artery, 75% and 85.7%. CONCLUSION: Three-dimensional coronary angiography obtained with electron beam CT is a promising, useful, and relatively accurate diagnostic imaging technique for the evaluation of graft patency in patients who have undergone coronary artery bypass graft surgery.
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1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Yoo, Kyung Jong(유경종) ORCID logo https://orcid.org/0000-0002-9858-140X
Jang, Yang Soo(장양수) ORCID logo https://orcid.org/0000-0002-2169-3112
Chung, Nam Sik(정남식)
Ha, Jong Won(하종원) ORCID logo https://orcid.org/0000-0002-8260-2958
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