多层螺旋CT在评价冠状动脉支架中的价值

目的：探讨多层螺旋CT冠状动脉造影（multi slice spiral computed tomographic angiog raphy,MSCTA）在冠状动脉支架评价中的价值.方法：对 28例冠状动脉支架患者行冠状动脉M SCTA检查,利用MSCT的各种先进的后处理功能对冠状动脉进行重建,以显示冠状动脉支架的形态、位置及有无支架术后的再狭窄.结果：在28 例多层螺旋CT冠状动脉造影中2例由于患者有严重的窦性心率不齐,多层螺旋CT检查重建图像质量欠佳,其余患者多层螺旋CT冠状造影检查均成功的显示冠状动脉各主支 （左主支、回旋支、前降支右支冠状动脉）,且可显示所有冠状动脉支架的形态、位置,其中9例患者的10个支架术后出现再狭窄,所有患者行MSC T冠脉造影检查无1例患者出现并发征,所有MSCT冠脉造影检查怀疑支架再狭窄的患者均同时行选择性血管造影检查,其中8例患者的8个支架诊断与MSCT冠脉造影检查结果相一致,其符合率为88.89%.结论：冠状MSCTA是一种安全可靠的检查方法,可作为冠状动脉一种无创检查方法,是评价冠状动脉支架有无再狭窄的重要检查手段之一.

The value of multislice spiral CT in evaluation of coronary arterial stent

Objective:To study the value of MSCTA in evaluation of coronary arterial stent.Methods:28 patients implanted coronary arterial stent were performed MSCTA scan,using various advanced post-processing function of MSCT to reconstruct coronary artery for demonstrated shape,position of stent,and detected if the stent were re-stenosis after implantation.Results:Reconstructive coronary artery images of 2 patients with severe sinus arrhythmia were not displayed clearly.In other(26 of 28) patients,coronary artery branches,shape and position of stent were clearly demonstrated.10 stents of 9 patients were found restenosis.All patients had not any complications.All patients with re-stenosis of stent underwent selective coronary artery angiography,the coincident rate of MSCTA and conventional angiography was 88.89%(8 stents of 7 patients).Conclusion:As a non-invasive examination,MSCTA is a valuable method to detect re-stenosis of coronary arterial stent.