64排螺旋CT评定冠心病PCI术后支架内再狭窄的价值

摘要

Objective:To explore the diagnostic value of 64‐slice spiral CT for in‐stent restenosis (ISR) after percuta‐neous coronary intervention (PCI) in patients with coronary heart disease (CHD) .Methods :A total of 120 CHD patients after PCI received 64‐slice spiral CT angiography and routine coronary angiography (CAG ) respectively . Then coronary ISR was assessed .Results:With CAG as the gold standard ,sensitivity ,specificity ,positive predictive value and negative predictive value were 87.5% ,95.3% ,80.0% and 97.3% respectively for 64‐slice spiral CT cor‐onary angiography in diagnosis of ISR .Conclusion :The 64‐slice spiral CT coronary angiography possesses high sensitivity and accuracy diagnosing coronary in‐stent restenosis ,which can be used as one of noninvasive measures for postoperative follow‐up after percutaneous coronary intervention .%目的：探讨64排螺旋CT诊断冠心病患者PCI术后支架内再狭窄（ISR）的价值。方法：120例冠心病 PCI术后患者分别接受64排螺旋CT冠状动脉成像检查和常规冠状动脉造影（CAG）检查，对冠状动脉支架再狭窄进行评估。结果：以CAG作为金标准，64排螺旋CT冠状动脉成像检查诊断ISR阳性的敏感性、特异性、阳性预测值、阴性预测值分别为87.5％、95.3％、80.0％、97.3％。结论：64排螺旋C T冠脉成像诊断冠脉支架再狭窄的敏感性和准确性较高，可作为冠状动脉支架植入术后患者随访的无创性手段之一。