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64层螺旋CT冠状动脉造影评价冠状动脉支架再狭窄

Journal of Interventional Radiology(2007)

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Abstract
目的 探讨64层螺旋CT冠状动脉造影对冠状动脉支架再狭窄评价的准确性.方法 采用西门子SOMATOM SENSATION CARDIAC 64层螺旋CT对59例冠脉支架植入后患者(共计112枚支架)行CT冠状动脉造影,以冠状动脉造影结果为金标准,分析检测的灵敏度、特异度等指标.结果 64层螺旋CT显示植入的112枚支架中109枚支架内腔得到清晰显示,总显示率97.3%(109/112).12处中、重度狭窄,多层螺旋CT冠状动脉造影诊断正确10处;15处轻度狭窄,多层螺旋CT冠状动脉造影正确5处,误诊10处,无漏诊.再狭窄诊断的灵敏度83.3%(10/12),特异度99%(99/100),阳性预测值90.9%(16/24),阴性预测值98%(99/101),准确率97.3%(109/112).结论 64层螺旋CT对冠状动脉支架再狭窄诊断有较高的准确性,可作为一种无创性检查用于支架术后的随访.
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Key words
Coronary angiography,Stent,Tomography,X-ray computed
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