CT后处理技术对下腔静脉滤器置入的术后评估

Postoperative evaluation on inferior vena cava filter implantationby CT post-processing technology

目的探讨CT后处理技术评估下腔静脉滤器置入后状态及相关并发症的价值。方法收集2014年1月-2022年1月在玉溪市人民医院置入可回收下腔静脉滤器的患者52例,均行CTV及滤器CT三维重建等后处理技术,评估下腔静脉滤器的位置、形态及有无并发症。结果52例患者滤器均未见主体或支脚断裂、下腔静脉狭窄。所有患者滤器位置正常,未见移位;36例患者滤器内未捕获血栓,16例患者滤器内捕获血栓。滤器脚穿透下腔静脉壁的程度为:0级14例,1级12例,2级26例。滤器发生轴向偏斜8例。结论CT后处理技术能清楚显示下腔静脉滤器的形态、位置及有无并发症情况,对下腔静脉滤器置入术后评估有一定临床价值。

Objective To explore the value of CT post-processing technology in evaluating the status of inferior vena cava filter after implantation and the related complications.Methods A total of 52 patients who were implanted retrievable inferior vena cava filter in Yuxi People s Hospital from January 2014 to January 2022 were collected,and all of them underwent post-processing technique such as inferior vena cava angiography(CTV)and filter CT 3D reconstruction,evaluated the position and morphology of inferior vena cava filter,and the complications.Results No fracture of main body or supporting foot or stenosis of the inferior vena cava was found in 52 cases.The position of the filter was normal in all patients and no displacement was observed.No thrombus was captured in the filter in 36 patients,and thrombus was captured in the filter in 16 patients.The degree of penetration of the filter foot through the the inferior vena cava wall was as follow:14 cases in grade 0,12 cases in grade 1,and 26 cases in grade 2.The filter was axially skewed in 8 cases.Conclusions CT post-processing technology can clearly display the shape,position and complications of inferior vena cava filters,and has certain clinical value for postoperative evaluation of inferior vena cava filter placement.