Precision of cephalometric landmark identification: Cone-beam computed tomography vs conventional cephalometric views
Precision of cephalometric landmark identification: Cone-beam computed tomography vs conventional cephalometric views
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DOI：
10.1016/j.ajodo.2008.12.018
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发表时间：
2009-09-01
影响因子：
3
通讯作者：
Mol, Andre
中科院分区：
文献类型：
--
作者：
Ludlow, John B.;Gubler, Maritzabel;Mol, Andre
简介：在这项研究中，我们比较了使用多平面锥形束计算机断层扫描（CBCT）体积和传统的侧位头颅X线片（Ceph）显示的地标识别的精度。方法：对20例正畸患者术前进行常规Ceph和CBCT检查。5名观察员在单独的会议期间使用计算机显示的多平面重建（MPR）CBCT和Ceph视图绘制了24个标志。将每个观察员的图与所有观察员的平均值之间的绝对差平均为1个变异性测量值（ODM）。将每个观察者与任何其他观察者的绝对差异平均作为变异性的第二个测量值（DEO）。方差分析和配对t检验用于分析变异性差异。结果：X线表现形态和标志点在P
Introduction: In this study, we compared the precision of landmark identification using displays of multi-planar cone-beam computed tomographic (CBCT) volumes and conventional lateral cephalograms (Ceph). Methods: Twenty presurgical orthodontic patients were radiographed with conventional Ceph and CBCT techniques. Five observers plotted 24 landmarks using computer displays of multi-planer reconstruction (MPR) CBCT and Ceph views during separate sessions. Absolute differences between each observer's plot and the mean of all observers were averaged as 1 measure of variability (ODM). The absolute difference of each observer from any other observer was averaged as a second measure of variability (DEO). ANOVA and paired t tests were used to analyze variability differences. Results: Radiographic modality and landmark were significant at P