Ray Co., Ltd., 12th Floor, 221, Pangyoyeok-ro, Bundang-Gu, Seongnam-si 13494, Korea.
Sensors (Basel). 2021 Nov 13;21(22):7552. doi: 10.3390/s21227552.
The purpose of this study was to analyze the effectiveness of newly developed dental dual-energy (DE) cone-beam computed tomography (CBCT) to compare both the voxel values in hard bone tissue of DE-CBCT and multidetector computed tomography (MDCT) images, collected in a clinical trial conducted at Seoul National University Dental Hospital. A software implemented as a scripted module of a three-dimensional (3D) slicer was developed to register the volume data from the MDCT space to DE-CBCT, locate the same 3D regions of interest (ROIs) in each image space, and extract the statistics of the ROIs. The mean values were paired and used as representative values of the ROIs. A scatter plot with the line of equality and Bland-Altman (BA) plot of difference for a pair of measured means were used for statistical analysis. Of the ROI pairs, 96% were within ±15% from the identity line, and more than 95% of the measured ROI pairs were within the limits of agreement of the 95% confidence intervals (CIs), with the CI of the limits in BA plots. The newly developed dental DE-CBCT showed a level of voxel value accuracy similar to that of MDCT.
本研究旨在分析新开发的牙科双能（DE）锥形束计算机断层扫描（CBCT）的有效性，比较在首尔国立大学牙科医院进行的临床试验中收集的 DE-CBCT 和多排 CT（MDCT）图像中硬骨组织的体素值。开发了一个软件，作为三维（3D）切片器的脚本模块，用于将 MDCT 空间的体数据注册到 DE-CBCT，在每个图像空间中定位相同的三维感兴趣区域（ROI），并提取 ROI 的统计信息。将平均值配对作为 ROI 的代表值。使用配对测量均值的散点图和均差 Bland-Altman（BA）图进行统计分析。在 ROI 对中，有 96%的对在 ±15%的同一条线内，超过 95%的测量 ROI 对在 95%置信区间（CI）的一致性限内，BA 图中的 CI 限。新开发的牙科 DE-CBCT 显示出与 MDCT 相似的体素值准确性水平。
