Vasconcelos Taruska Ventorini, Neves Frederico Sampaio, Moraes Lívia Almeida Bueno, Freitas Deborah Queiroz
Department of Oral Diagnosis, Faculdade de Odontologia, Universidade Estadual de Campinas, Piracicaba, SP, Brazil.
Braz Oral Res. 2015;29. doi: 10.1590/1807-3107BOR-2015.vol29.0035. Epub 2015 Feb 11.
This article aimed at comparing the accuracy of linear measurement tools of different commercial software packages. Eight fully edentulous dry mandibles were selected for this study. Incisor, canine, premolar, first molar and second molar regions were selected. Cone beam computed tomography (CBCT) images were obtained with i-CAT Next Generation. Linear bone measurements were performed by one observer on the cross-sectional images using three different software packages: XoranCat®, OnDemand3D® and KDIS3D®, all able to assess DICOM images. In addition, 25% of the sample was reevaluated for the purpose of reproducibility. The mandibles were sectioned to obtain the gold standard for each region. Intraclass coefficients (ICC) were calculated to examine the agreement between the two periods of evaluation; the one-way analysis of variance performed with the post-hoc Dunnett test was used to compare each of the software-derived measurements with the gold standard. The ICC values were excellent for all software packages. The least difference between the software-derived measurements and the gold standard was obtained with the OnDemand3D and KDIS3D (-0.11 and -0.14 mm, respectively), and the greatest, with the XoranCAT (+0.25 mm). However, there was no statistical significant difference between the measurements obtained with the different software packages and the gold standard (p> 0.05). In conclusion, linear bone measurements were not influenced by the software package used to reconstruct the image from CBCT DICOM data.
本文旨在比较不同商业软件包线性测量工具的准确性。本研究选取了八个全口无牙的干燥下颌骨。选择了切牙、尖牙、前磨牙、第一磨牙和第二磨牙区域。使用i-CAT下一代设备获取锥形束计算机断层扫描（CBCT）图像。由一名观察者使用三种不同的软件包在横断面图像上进行线性骨测量：XoranCat®、OnDemand3D®和KDIS3D®，所有这些软件包都能够评估DICOM图像。此外，为了评估可重复性，对25%的样本进行了重新评估。将下颌骨切开以获得每个区域的金标准。计算组内系数（ICC）以检验两个评估期之间的一致性；使用事后Dunnett检验进行的单因素方差分析用于将每个软件得出的测量值与金标准进行比较。所有软件包的ICC值都非常好。OnDemand3D和KDIS3D得出的测量值与金标准之间的差异最小（分别为-0.11和-0.14毫米），而XoranCAT得出的差异最大（+0.25毫米）。然而，不同软件包得出的测量值与金标准之间没有统计学上的显著差异（p>0.05）。总之，线性骨测量不受用于从CBCT DICOM数据重建图像的软件包的影响。
