用于锥形束计算机断层扫描图像上气道三维分析的三种成像软件包的可靠性和准确性。
Reliability and accuracy of three imaging software packages used for 3D analysis of the upper airway on cone beam computed tomography images.
作者信息
Chen Hui, van Eijnatten Maureen, Wolff Jan, de Lange Jan, van der Stelt Paul F, Lobbezoo Frank, Aarab Ghizlane
机构信息
1 Department of Oral Radiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Netherlands.
2 Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Netherlands.
出版信息
Dentomaxillofac Radiol. 2017 Aug;46(6):20170043. doi: 10.1259/dmfr.20170043. Epub 2017 Jun 14.
OBJECTIVES
The aim of this study was to assess the reliability and accuracy of three different imaging software packages for three-dimensional analysis of the upper airway using CBCT images.
METHODS
To assess the reliability of the software packages, 15 NewTom 5G (QR Systems, Verona, Italy) CBCT data sets were randomly and retrospectively selected. Two observers measured the volume, minimum cross-sectional area and the length of the upper airway using Amira (Visage Imaging Inc., Carlsbad, CA), 3Diagnosys (3diemme, Cantu, Italy) and OnDemand3D (CyberMed, Seoul, Republic of Korea) software packages. The intra- and inter-observer reliability of the upper airway measurements were determined using intraclass correlation coefficients and Bland & Altman agreement tests. To assess the accuracy of the software packages, one NewTom 5G CBCT data set was used to print a three-dimensional anthropomorphic phantom with known dimensions to be used as the "gold standard". This phantom was subsequently scanned using a NewTom 5G scanner. Based on the CBCT data set of the phantom, one observer measured the volume, minimum cross-sectional area, and length of the upper airway using Amira, 3Diagnosys, and OnDemand3D, and compared these measurements with the gold standard.
RESULTS
The intra- and inter-observer reliability of the measurements of the upper airway using the different software packages were excellent (intraclass correlation coefficient ≥0.75). There was excellent agreement between all three software packages in volume, minimum cross-sectional area and length measurements. All software packages underestimated the upper airway volume by -8.8% to -12.3%, the minimum cross-sectional area by -6.2% to -14.6%, and the length by -1.6% to -2.9%.
CONCLUSIONS
All three software packages offered reliable volume, minimum cross-sectional area and length measurements of the upper airway. The length measurements of the upper airway were the most accurate results in all software packages. All software packages underestimated the upper airway dimensions of the anthropomorphic phantom.
目的
本研究旨在评估三种不同成像软件包在使用锥形束计算机断层扫描（CBCT）图像对上气道进行三维分析时的可靠性和准确性。
方法
为评估软件包的可靠性，随机回顾性选取15例NewTom 5G（QR Systems，意大利维罗纳）CBCT数据集。两名观察者使用Amira（Visage Imaging Inc.，美国加利福尼亚州卡尔斯巴德）、3Diagnosys（3diemme，意大利坎图）和OnDemand3D（CyberMed，韩国首尔）软件包测量上气道的容积、最小横截面积和长度。使用组内相关系数和布兰德-奥特曼一致性检验来确定上气道测量的观察者内和观察者间可靠性。为评估软件包的准确性，使用一个NewTom 5G CBCT数据集打印出具有已知尺寸的三维人体模型作为“金标准”。随后使用NewTom 5G扫描仪对该模型进行扫描。基于该模型的CBCT数据集，一名观察者使用Amira、3Diagnosys和OnDemand3D测量上气道的容积、最小横截面积和长度，并将这些测量结果与金标准进行比较。
结果
使用不同软件包对上气道进行测量的观察者内和观察者间可靠性均极佳（组内相关系数≥0.75）。在容积、最小横截面积和长度测量方面，所有三个软件包之间均具有极佳的一致性。所有软件包均将上气道容积低估了8.8%至12.3%，最小横截面积低估了6.2%至14.6%，长度低估了1.6%至2.9%。
结论
所有三个软件包在上气道容积、最小横截面积和长度测量方面均提供了可靠的结果。在上气道长度测量方面，所有软件包得出的结果最为准确。所有软件包均低估了人体模型的上气道尺寸。
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