Document Detail

Noninvasive evaluation of coronary artery bypass graft patency using three-dimensional angiography obtained with contrast-enhanced electron beam CT.
MedLine Citation:
PMID:  10587146     Owner:  NLM     Status:  MEDLINE    
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.
J W Ha; S Y Cho; W H Shim; N Chung; Y Jang; H M Lee; K O Choe; W J Chung; S H Choi; K J Yoo; M S Kang
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  AJR. American journal of roentgenology     Volume:  172     ISSN:  0361-803X     ISO Abbreviation:  AJR Am J Roentgenol     Publication Date:  1999 Apr 
Date Detail:
Created Date:  1999-12-17     Completed Date:  1999-12-17     Revised Date:  2008-02-15    
Medline Journal Info:
Nlm Unique ID:  7708173     Medline TA:  AJR Am J Roentgenol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1055-9     Citation Subset:  AIM; IM    
Cardiology Division, Yonsei Cardiovascular Center, Yonsei University College of Medicine, Seoul, Korea.
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MeSH Terms
Coronary Angiography*
Coronary Artery Bypass*
Image Processing, Computer-Assisted*
Internal Mammary-Coronary Artery Anastomosis
Middle Aged
Saphenous Vein / radiography,  transplantation
Sensitivity and Specificity
Tomography, X-Ray Computed* / methods
Vascular Patency

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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