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KMID : 0614720070500020127
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Journal of Korean Medical Association
2007 Volume.50 No. 2 p.127 ~ p.133
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Assessment of Coronary Artery Bypass Graft Patency Using Multidetector Computed Tomography
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Seo Joon-Beom
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Abstract
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Coronary artery bypass graft surgery (CABG) is the standard of care in the treatment of advanced coronary artery disease. Invasive coronary angiography has been used to assess the status of graft. Recently, multidetector computed tomography (MDCT) has emerged as an important diagnostic tool for the evaluation of graft patency. Many studies have shown that MDCT has a high sensitivity and specificity in detecting graft occlusion or high-grade stenosis. However, there are several diagnostic pitfalls in evaluating CABG graft patency due to several factors, including technical factors, patient factors, and flow competition. Acknowledgment of these pitfalls and remedies to avoid wrong interpretation is essential to improve diagnostic accuracy. In addition, MDCT yields additional information such as plural effusion, pericardial effusion, sternal infection, pneumonia, pulmonary embolism, and so on. The continuing advance in the MDCT technology suggests that MDCT will be a rapid, convenient, and noninvasive tool in evaluating CABG patients in the near future.
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KEYWORD
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Computed tomography, Coronary artery disease, Coronary artery bypass graft
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