茎突CT三维重建检查技术及测量方法探讨

The technique in three-dimensional CT reconstruction and the measurement of the styloidprocess

目的 :探讨茎突CT扫描 3维重建对测量茎突长度的价值和与冠、矢状面夹角的价值。方法 :任选 10例患者 ,CT扫描后再 3D重建。结果 :全部病例的三维立体显示良好 ,病变整体形态、与周围结构的关系从不同位置和角度进行观察 ,方便测量。茎突左右侧平均长度分别为 2 4.7mm ,2 6 .7mm ;与冠、矢状面的夹角右侧分别为 18° ,19.7° ,左侧分别为 17.2° ,2 0 .2°。结论 :茎突的CT 3D重建方法 ,优于其它检查方法 ,但茎突的

Objective:To evaluate the 3D CT reconstruction in measuring the length and angle of the styloid process.Methods:10 cases were selected randomly to perform the 3D reconstruction after CT scanning and then to measure the length of the styloid process and angle between the coronal or sagittal section and the styloid process.Results:The stereoscopic three dimensional images of the styloid process were clearly demonstrated and easily observed in different directions.The average length and angle of the styloid process with the coronal and sagittal section in 10 cases were 26.7mm,18°,19.7°(right side) and 24.7mm,17.2°,20.2°(left side), respectively.Conclusion:The 3D CT reconstruction is a feasible and effective method of measuring the styloid process,but the quality of 3D images depends on rational parameters and correct postures.