320排容积CT检查对冠脉支架植入术后患者支架内再狭窄的评价

The Value of Volume 320-row CT on In-stent Restenosis in Patients with Coronary Stent Implantation

目的 探讨320排容积CT对冠脉内支架植入术后忠者支架内再狄窄的评估价值.方法 对81例冠心病经皮冠脉介入治疗术后患者的临床资料进行观察分析,以冠脉造影结果为金标准,计算320排容积CT对诊断支架内再狭窄的灵敏度、特异度、阳性预测值、阴性预测值.结果 320排容积CT对支架内再狭窄诊断的灵敏度、特异度、阳性预测值、阴性预测值分别为94.87%、98.1%、92.5%、98.73%.结论 320排容积CT对支架内再狭窄的诊断有较高的阳性预测值,可以用于冠状动脉支架植入术后对冠脉支架的随访.

Objective To assess the value of volume 320-row CT on in-stent restenosis（ISR） in patients with coronary stent implantation. Methods The clinical data of 8l patients after coronary percutaneous intervention（PCl） were analyzed. The sensitivity, specificity, positive predictive value,negative predictive value of volume 320-row CT for diagnosis of ISR were calculated compared to coronary angiography（CAG）,the gold standard for coronary heart disease. Results The sensitivity, specificity, positive predictive value, negative predictive value were 94.87%,98.1%,92.5% and 98.73% respectively for volume 320-row CT diagnosis of ISR. Conclusion Volume 320-row CT had a higher positive predictive value for the diagnosis of ISR,it can be applied to followed-up of coronary stent restenosis after coronary stent implantation.