X线数字断层融合技术在膝关节外伤检查中的应用

摘要

Objective:To explore the clinical value of X-ray digital tomosynthesis(DTS)in the diagnosis of knee joint fractures.Methods:A total of 28 patients with knee joint trauma whose X-ray film cannot be clearly diagnosed or can confirm the diagnosis but need for further identification of diagnosis were given DTS scan and three-dimensional reconstruction in order to control the study.Results:The reconstructed images after DTS scanning showed that the knee joint fractures were clearly diagnosed(P<0.01),and the detection rate of 28 knee joint fractures was 92.86%.DTS scanning could clearly detect the fresh knee joint fracture's fracture line,corresponding line and broken bones.For the old fracture,DTS scanning could clearly show the condition of the fracture end's healing.Conclusion:DTS is of great value in the diagnosis of rib fractures,especially in the forensic identification of rib fractures,which is an important supplement to CT scan and its three-dimensional reconstruction.%目的:探讨X线数字断层融合技术(digital tomosynthesis,DTS)在膝关节外伤中的临床应用价值.方法:对28例膝关节外伤骨折X线平片不能确诊或显示欠佳的患者进行断层融合扫描及重建处理,获得扫描范围内连续断层图像,常规检查体位以冠,矢状位扫描为主,必要时加双斜扫描.结果:DTS确诊骨折26例,优于普通X线.DTS扫描新鲜骨折能清晰显示骨折线,骨折断端对位对线及碎骨片情况,陈旧性骨折清晰显示断端愈合情况.结论:断层融合技术在诊断膝关节骨折方面具有显著的优越性,尤其在检查结构复杂、体部较厚及骨折内固定术后复查等方面也具有重要的应用价值.