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- W2385363715 abstract "Objective To assess the in-stent lumen visibility and image quality of various coronary stents by 256-slice computed tomography angiography(CTA),and explore the diagnostic accuracy of 256-slice computed tomography angiography in detecting coronary in-stent restenosis(ISR).Methods 44 patients after stent implantation were examined with Philips Brilliance iCT and CTA image of stents were assessed by semi-quantitative method.All of these patients underwent conventional coronary angiography(CAG) within three months after CTA.The patency of stents was independently evaluated by two blinded readers.CTA findings were compared with CAG results to analyze the diagnostic accuracy for detection of restenosis(≥50%) with 256-slice computed tomography coronary angiography.Results A total of 44 patients(71 stents) were identified in 256-slice computed tomography angiography(CTA),the rate of identification was 100%(71/71).Sensitivity,specificity,positive predictive value and negative predictive value was 86.2%,83.3%,78%,and 89.7% of 256-slice CT to identify in-stent restenosis,respectively.CT image quality of Cobalt-chromium alloy group was better than stainless steel stent group,of thin-wall stent was better than thick-wall stent,of large-diameter stent was better than small-diameter stent.The diagnostic accuracy of Cobalt-chromium alloy group was higher than stainless steel stent group;of large-diameter stent was higher than small-diameter stent;of thin-wall stent was better than thick-wall stent(P0.05).Conclusion 256-slice CTA has high diagnostic accuracy for detecting in-stent restenosis,and is suggested as an important tool for the follow up after coronary stenting.Materials,wall thickness and diameter of coronary stent may influence imaging quality of 256-slice CT evaluation." @default.
- W2385363715 created "2016-06-24" @default.
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- W2385363715 date "2013-01-01" @default.
- W2385363715 modified "2023-09-23" @default.
- W2385363715 title "Assessment of Patency and Lumen Visibility of Various Coronary Stents by 256-slice Computed Tomography" @default.
- W2385363715 hasPublicationYear "2013" @default.
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