南京医科大学学报（自然科学版）2017，Vol.37Issue(4)：447-451,5.DOI:10.7655/NYDXBNS20170413
CBCT三维头影测量关于面部对称性标记点可靠性的研究
A research on the measurement reliability of facial symmetry landmarks by three-dimensional cephalometry with CBCT
摘要
Abstract
Objective:To evaluate the reliability of cone-beam computed tomography (CBCT) on identification of facial symmetry landmarks,and provide evidences for the measurement and analysis of three-dimensional facial symmetry.Methods:The CBCT images of 57 orthodontic patients were measured by multi planar reconstruction (sagittal,axial and coronal to the point) by using mimics 10.0 software to calibrate 28 facial symmetry related landmarks.There were 2 observers in this study,each observer had repeated 3 times with 2 weeks and 4 weeks intervals,respectively.The intra-and inter-class correlation coefficient (ICC) of each dimension coordinate value of each landmark was calculated to evaluate the reliability of the landmarks for intra-observer and inter-observer.Results:The ICCs of Ba,PNS,Cg,N,Antcr (L,R),D'(L,R),K (L,R),Maz (L,R),Or (L,R),Zyg (L,R),Cd (L,R) were with high reliability,and could be used for the analysis of CBCT three-dimensional cephalometry of facial symmetry.Conclusion:In this study,there are 19 in 28 facial symmetry related landmarks with high reliability,which are of great value in clinical practice.关键词
CBCT/头影测量/面部对称性/标记点Key words
CBCT/cephalometry/facial symmetry/landmarks分类
医药卫生引用本文复制引用
王嘉艺,王珊,王林..CBCT三维头影测量关于面部对称性标记点可靠性的研究[J].南京医科大学学报（自然科学版）,2017,37(4):447-451,5.基金项目
国家自然科学基金(81230022) （81230022）
江苏省临床医学专项(b12014073) （b12014073）
