目的: 探讨宝石CT不同重建模式对冠状动脉支架术后成像质量影响。方法: 选取冠状动脉支架术后复查的160例患者为研究对象(共置入支架160枚),进行宝石CT冠状动脉成像,对所有患者均使用高清重建模式和标准重建模式,对两种重建模式的成像质量进行评估和比较。结果: 高清重建模式成像评分为(3.51±0.21)分,标准重建模式评分为(3.12±0.16)分,高清重建模式成像评分高于标准重建模式(t=-2.451,P=0.024);测量成像支架直径,高清重建模式支架成像直径更接近原始支架数据,此外,两种成像模式支架直径比较,差异有统计学意义(t=-2.568,P=0.018)。结论: 宝石CT高清重建模式下,冠脉支架的边缘成像更清晰,且测量动脉支架的直径更准确,更有利于对冠脉支架术后情况进行评估,值得在临床推广使用。

Objective: To investigate the imaging comparison of different gem CT reconstruction modes in the postoperative assessment of coronary artery stent.Methods: 160 cases of patients with postoperative review of coronary artery stent (160 stents placed) were selected as the research objects, and accepted gemstone CT coronary artery imaging. High-definition (hd) reconstruction model and standard reconstruction model were adopted and their imaging qualities were assessed and compared.Results: The imaging score of hd reconstruction model (3.51±0.21) was higher than that of the standard reconstruction mode (3.12±0.16) (t=-2.451, P=0.024). Diameter of image bracket of hd reconstruction model was closer to the original data, in addition, there was statistically significant difference in the two imaging modes (t=-2.568, P=0.018).Conclusion: In the CT hd reconstruction model, the edge imaging of coronary stents is clearer, and the diameter of the artery stents is more accurate, which can be more conducive to assess postoperative situation. It is worth popularizing in clinical use.