Comparison of cephalometric measurements with digital versus conventional cephalometric analysis
Comparison of cephalometric measurements with digital versus conventional cephalometric analysis
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DOI：
10.1093/ejo/cjn105
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发表时间：
2009-06-01
影响因子：
2.6
通讯作者：
Memikoglu, T. Ufuk Toygar
中科院分区：
文献类型：
--
作者：
Celik, Erkan;Polat-Ozsoy, Omur;Memikoglu, T. Ufuk Toygar
本研究的目的是评价使用直接数字X线片的计算机化方法进行的角度和线性头影测量的准确性和可靠性。然后将其与使用数字化垫和手动追踪X线片的计算机化方法获得的测量值进行比较。使用Vistadent 2.1 AT和Jiffy正畸评估（JOE）软件程序和手动追踪PRINDIONAL追踪125例患者的治疗前数字头影测量X线片。由一名研究者在每张X光片上定义26个解剖标志，并计算28个变量。统计学分析采用单因素方差分析，多组比较采用邓肯's检验，显著性水平为0.05。除鼻唇角、ANS-Me、APFH、L1-NB、Nperp-Pg、Go-Me和U1-NA测量外，大多数变量在三种方法之间显示一致性。研究结果表明，大多数头影测量结果与使用Vistadent 2.1 AT的直接数字X线片以及使用JOE软件和手描记的打印机具有高度可重复性。尽管Vistadent 2.1 AT、JOE和手描法之间的某些测量值相关性较低，但大多数常用测量值都是准确的。使用数字射线照片的计算机化方法的用户友好和节省时间的性质使其成为首选。
The aim of this study was to evaluate the accuracy and reliability of angular and linear cephalometric measurements using a computerized method of direct digital radiographs. This was then compared with the measurements obtained with a computerized method that uses a digitizing pad and hand tracing of printout radiographs.Pre-treatment digital cephalometric radiographs of 125 patients were traced using Vistadent 2.1 AT and Jiffy Orthodontic Evaluation (JOE) software programs and by hand tracing of the printouts. Twenty-six anatomical landmarks were defined on each radiograph by a single investigator and 28 variables were calculated. Statistical analysis was undertaken using one-way analysis of variance and multiple group comparisons using Duncan's test at a significance level of 0.05.Low correlation coefficients indicated poor reproducibility for nasolabial angle for each of the three methods (P > 0.05). Most of the variables showed consistency between the three methods except for nasolabial angle, ANS-Me, APFH, L1-NB, Nperp-Pg, Go-Me, and U1-NA measurements. The findings indicated that most of the cephalometric measurements were highly reproducible with direct digital radiographs using Vistadent 2.1 AT as well as with printouts using both JOE software and hand tracing. Despite the low correlation for some measurements between the Vistadent 2.1 AT, JOE, and hand-tracing methods, most of the commonly used measurements were accurate. The user-friendly and time-saving nature of the computerized method using digital radiographs makes it the preferred option.