Why the study?
Does nondynamic computed tomography accurately assess aortocoronary bypass graft patency compared to coronary angiography in patients with bypass grafts?
Population
67 patients with 125 aortocoronary bypass grafts
Comparison
Nondynamic computed tomography performed before… vs Coronary angiography
Design
Cross-sectional
Authors
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CT risks missing severe graft stenosis in symptomatic patients; leaves open whether dynamic CT improves accuracy in prospective studies.
Does nondynamic computed tomography accurately assess aortocoronary bypass graft patency compared to coronary angiography in patients with bypass grafts?
While nondynamic CT has high sensitivity and specificity for determining complete bypass graft occlusion or patency, it fails to reliably detect severe graft stenosis, limiting its utility as a replacement for angiography in symptomatic patients.
Daniel et al. (1983) studied this question.
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