Reliability of three-dimensional measurements of the upper airway on cone beam computed tomography images

详细信息    查看全文

• 作者：Hui Chen ; MD ; PhD Candidate^a ; ^{H2.chen@acta.nl" class="auth_mail" title="E-mail the corresponding author} ; Ghizlane Aarab ; DDS ; PhD^b ; Azin Parsa ; DDS ; PhD^c ; Jan de Lange ; DDS ; PhD^d ; Paul F. van der Stelt ; DDS ; PhD^e ; Frank Lobbezoo ; DDS ; PhD^f
• 刊名：Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：122
• 期：1
• 页码：104-110
• 全文大小：593 K

文摘

The aim of this study was (1) to assess intra- and interobserver reliability of the localization of anatomic landmarks of the upper airway on cone beam computed tomography (CBCT) images; and (2) to assess intra- and interobserver reliability of the three-dimensional measurements of the upper airway based on these landmarks.

Study Design

Fifteen NewTom 5G (QR systems, Verona, Italy) CBCT data sets were randomly selected from the archives of the Department of Oral Radiology, Academic Centre for Dentistry (ACTA) at University of Amsterdam and VU University, Amsterdam, The Netherlands. Three observers localized six anatomic landmarks that are relevant for upper airway analysis twice, with a 10-day interval, using 3Diagnosys software (v5.3.1, 3diemme, Cantu, Italy). Subsequently, the observers performed upper airway volume measurement based on those landmarks twice as well, again with a 10-day interval, using Amira software (v4.1, Visage Imaging Inc., Carlsbad, CA). The upper airway measurements also included the minimum cross-sectional area (CSA_min), location of the CSA_min, and anteroposterior and lateral dimensions of the CSA_min.

Results

Both intraobserver reliability and interobserver reliability were excellent for the localization of the anatomic landmarks of the upper airway (intraclass correlation coefficients = 0.97-1.00) as well as for the three-dimensional upper airway measurements (intraclass correlation coefficients = 0.78-1.00).

Conclusions

The methodology of landmark localization and upper airway measurements, as used in this study, showed an excellent reliability and can thus be recommended for upper airway analysis on CBCT images.