PCI术后冠状动脉双源64层螺旋CT成像与常规冠脉造影的对照研究

目的探讨双源64层螺旋CT（64-slice muhislice computed tomography，MSCT）成像应用于冠脉介入术后随访、冠状动脉评价的价值。方法选择PCI术后需要影象学随访或疑诊再狭窄者，行MSCT成像，并对部分病例行冠状动脉造影，与冠状动脉造影进行比较，评价其敏感性、特异性。结果MSCT成像显示冠状动脉支架内再狭窄的敏感性、特异性较高，尤其是支架两端的血管狭窄；对多数支架的血管内膜增生程度和管腔评价有一定的临床应用价值。结论MSCT成像技术能够较好地显示冠状动脉支架的位置和形态学特征，具有较高的特异性、敏感性，可满意的用于支架置入术后的随访。

Coronary Angiography with Dual source Spiral computed tomography after percutaneous coronary intervention.A Comparison with Conventional Angiography.

Objective To evaluate the diagnostic accuracy of coronary in-stent restenosis using 64-slice multislice computed tomography（MSCT） coronary angiography. Methods Patients who were suspected of restenosis or needed follow-up imageology were consecutively investigated using 64-slice spiral computed tomography. Patients underwent coronary angiography were selected according to inclusion criteria. Results 64- MSCT have a good temporal and spatial resolution about obstructive restenosis with acceptable sensitivity and specificity, especially amphi-restenosis in conorany stent. 64-slice spiral CT was a useful tool to assess the coronary stent patency. Conclusion 64-MSCT has high diagnostic accuracy for detecting in-stent restenosis,indicating and suggesting as a useful tool for the follow up after coronary stenting.