What is the accuracy of coronary computed tomography angiography (CCTA) of coronary bypass grafts?

Updated: Dec 21, 2017
  • Author: Eugene C Lin, MD; Chief Editor: Eugene C Lin, MD  more...
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Answer

Answer

Bypass grafts are well visualized by CCTA. In a meta-analysis, [36] 16- and 64-slice CCTA had a sensitivity of 98% and specificity of 97% for coronary artery bypass graft stenosis or occlusion; 92% of bypass grafts were evaluable. However, the accuracy for evaluating the coronary artery bypass graft (CABG) anastomoses [37] is less than that for other CABG segments.


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