64层CT多种成像后处理技术在急诊膝关节创伤诊断中的应用

The Value of 64-slice Computed Tomography Multi-imaging Post-processing Technique in Diagnosis of Emergency Knee Trauma

目的:探讨64层螺旋CT多种图像后处理技术在急诊膝关节创伤诊断中的价值。材料与方法:利用64层CT对26例急诊膝关节损伤患者行快速扫描,将获得的原始数据分别通过不同算法得出骨窗及软组织窗(显示膝关节周围软组织及膝关节韧带)薄层图像,然后行多种图像后处理技术功能成像(包括MPR、MIP以及VRT成像,必要时辅以SSD图像)。结果:26例急诊行64层螺旋CT检查的急诊膝关节创伤患者,其中发现骨折39处(包括隐匿性骨折7处);髌及胫腓侧韧带、前后交叉韧带损伤34处,此外25例患者伴有软组织损伤及23例合并有关节腔积液,所有病例最终经过临床证实。结论:64层螺旋CT在急诊膝关节创伤诊断中有非常重要的意义和实际应用价值,可以作为急诊膝关节创伤的首选手段。

Purpose： To evaluate the value of 64 - silce spiral computed tomography multi - imaging post - processing technique in diagnosis of emergency knee trauma. Materials and Methods： analyse the images obtained with both bone window and soft tissue window of 26 patients with knee trauma after rapid scanning, different reconstruction algorithm and multi - imaging post- processing technique（ including MPR, MIP and VRT, SSD if necessary）. Results： There were totally 39 fracture sites （ including 7 occult fracture sites） and 34 knee joint ligaments injuries were found by 64 - silce CT, in addition, 25 cases with soft tissue injury and 23 cases with joint effusion. Conclusion： 64 -slice CT has very important meaning and practical application value, also should be used as the first choice for clinical diagnosis of Emergency Knee Trauma.