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- W2188824442 abstract "Background: Assessment of bypass grafts by invasive coronary angiography (ICA) is bothersome and often requires extra procedure time, contrast load, and radiation exposure. Aim: To evaluate the ability of dual-source computed tomography angiography (CTA) to detect significant graft disease in symptomatic patients after coronary artery bypass grafting (CABG). Methods: Thirty (26 men, mean age 66 ± 9 years) consecutive post-CABG patients from the prospective ANIN Computed Tomography Angiography Registry who underwent both dual-source CTA and ICA for suspected graft disease were included in the analysis. Coronary artery bypass grafts, anastomotic sites, and distal runoffs with a diameter of ≥ 1.5 mm were evaluated for the presence of significant stenoses (≥ 50% diameter reduction). Invasive coronary angiography served as a reference standard, and was performed within 30 days of dual-source CTA. Results: A total of 58 bypass grafts with 56 anastomotic sites, and 54 distal runoffs were evaluable both in dual-source CTA and ICA. Sensitivity, specificity, and positive and negative predictive values of dual-source CTA for the detection of significant lesions in bypass grafts were 100%, 92%, 86%, and 100%, respectively. In anastomotic sites, dual-source CTA detected significant stenosis with a sensitivity and specificity of 100% and 96%, respectively. If analysis was restricted to distal runoff segments, sensitivity and specificity were 50% and 98%, respectively. On a per-patient basis, all patients with at least one significant graft stenosis on ICA were correctly classified using dual-source CTA. Conclusions: Dual-source CTA permits the reliable assessment of bypass graft disease with high diagnostic accuracy and can be used in clinical routine as a noninvasive test to rule out suspected graft dysfunction in symptomatic post-CABG patients." @default.
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- W2188824442 date "2010-01-01" @default.
- W2188824442 modified "2023-09-27" @default.
- W2188824442 title "Dual-source computed tomography angiography in patients after bypass grafting - comparison with invasive coronary angiography Dwuźródłowa tomografia komputerowa tętnic wieńcowych u chorych po operacji pomostowania aortalno-wieńcowego - porównanie z inwazyjną koronarografią" @default.
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