三江地区成人颧骨复合体三维X线头影测量与三维CT测量的比较

目的 探讨颧骨复合体三维X线头影测量与三维CT测量的比较研究.方法 从佳木斯大学在校学生中挑选120名汉族女大学生（出生并生长于三江地区）,年龄19～23岁（平均21.4岁）.采用三维X线头影测量技术和三维CT测量技术,对其面部和颅骨组织做定量测量研究,测量标记点参照祁佐良颧骨颧弓大小的测量方法,测量上面宽、中面宽、下面宽、颧突宽、颧突距和颧突角,并计算骨性面型宽度比值,对以上两种测量结果进行统计学分析.结果 三维CT测量面型宽度比值分别为0.83和0.79,骨性面型宽度比值分别为0.81和0.77;三维X线头影测量面型宽度比值分别为0.84和0.80,骨性面型宽度比值分别为0.82和0.77.两种方法的测量结果差异无统计学意义（P＞0.05）.结论 三维CT测量与三维X线头影测量,均可以应用于颧骨复合体肥大的诊断.

Comparison between three-dimensional cephalometric and three-dimensional CT measurements of adult zygomatic complex at Sanjiang area

Objective To compare the three-dimensional eephalometric and three-dimensional CT measurements of adult zygomatic complex among a Sanjiang population.Methods 120 female natives of Sanjiang region from Chinese Han between 19 to 23 years of age (mean 21.4 years),were randomly selected from students of Jiamusi University.Three-dimensional cephalometric and CT measurements of the face and skull were taken,with reference to zygomatic size measurement by Prof.Qi Zuo-liang,for the comparative study, which included the upper,mid and lower facial width followed by the length,width and angle of malar process,and width of the facial bone.Statistical analysis was done with the obtained measurements.Results Three-dimensional CT analysis showed facial width ratio of 0.83 and 0.79 and skeletal facial profile width ratio of 0.81 and 0.77,respectively,when compared with three-dimensional cephalometric analysis that showed facial width ratio of 0.84 and 0.77.Both values showed no statistical significance (P>0.05).Conclusion Three-dimensional CT measurement as the same to three-dimensional cephalometric can be used in the diagnosis of prominent malar complex.