Comparison of Hand and Semiautomatic Tracing Methods for Creating Maxillofacial Artificial Organs using Sequences of Computed Tomography (CT) and Cone Beam Computed Tomography (CBCT) Images

2017 ◽  
Vol 40 (6) ◽  
pp. 307-312 ◽  
Author(s):  
Bence T. Szabo ◽  
Seçil Aksoy ◽  
Gabor Repassy ◽  
Krisztian Csomo ◽  
Csaba Dobo-Nagy ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Volume Measurement ◽  
Artificial Organs ◽  
Cone Beam ◽  
Artificial Organ ◽  
Volume Determination ◽  
Measurement Results ◽  
Volume Measurements ◽  
Maxillary Sinuses

Introduction The aim of this study was to compare the paranasal sinus volumes obtained by manual and semiautomatic imaging software programs using both CT and CBCT imaging. Methods 121 computed tomography (CT) and 119 cone beam computed tomography (CBCT) examinations were selected from the databases of the authors’ institutes. The Digital Imaging and Communications in Medicine (DICOM) images were imported into 3-dimensonal imaging software, in which hand mode and semiautomatic tracing methods were used to measure the volumes of both maxillary sinuses and the sphenoid sinus. The determined volumetric means were compared to previously published averages. Results Isometric CBCT-based volume determination results were closer to the real volume conditions, whereas the non-isometric CT-based volume measurements defined coherently lower volumes. By comparing the 2 volume measurement modes, the values gained from hand mode were closer to the literature data. Furthermore, CBCT-based image measurement results corresponded to the known averages. Conclusions Our results suggest that CBCT images provide reliable volumetric information that can be depended on for artificial organ construction, and which may aid the guidance of the operator prior to or during the intervention.

scholarly journals Age- and sex-related changes of the volume of maxillary sinuses quantified via cone beam computed tomography

2021 ◽  
Vol 10 (14) ◽  
pp. e312101422220
Author(s):  
Lucas Eigi Borges Tanaka ◽  
Ademir Franco ◽  
Rafael Ferreira Abib ◽  
Luiz Roberto Coutinho Manhães-Junior ◽  
Sergio Lucio Pereira de Castro Lopes
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Three Dimensional ◽  
Specific Treatment ◽  
Cone Beam ◽  
Patient Specific ◽  
Sample Collection ◽  
Left And Right ◽  
Age And Sex ◽  
Maxillary Sinuses

Anatomical studies found in cone beam computed tomography (CBCT) an optimal resource for the three-dimensional (3D) assessment of the head and neck. When it comes to the maxillary sinuses, CBCT enables a life-size reliable volumetric analysis. This study aimed to assess the age and sex-related changes of the maxillary sinuses using volumetric CBCT analysis. The sample consisted of CBCT scans of 112 male (n = 57) and female (n = 55) individuals (224 maxillary sinuses) distributed in 5 age categories: 20 |— 30, 31 |— 40, 41 |— 50, 51 |— 60 and > 60 years. Image acquisition was accomplished with the i-CAT Next Generation device set with voxel size of 0.25 mm and field of view that included the maxillary sinuses (retrospective sample collection from an existing database). Image segmentation was performed in itk-SNAP (www.itksnap.org) software. The volume (mm3) of the segmented sinuses was quantified and compared pairwise based on side (left and right), sex (male and female) and age (five groups). Differences between left and right sides volume were not statistically significant (p > 0.05). The mean volume of maxillary sinuses in males was 22% higher than females (p = 0.0001). Volumetric differences were not statistically significant between age categories for males and females (p > 0.05). The discriminant power of sinuses’ volume may support customized and patient-specific treatment planning based on sex.

Cone-Beam Computed Tomography Analysis of Mucosal Thickening in Unilateral Cleft Lip and Palate Maxillary Sinuses

2016 ◽  
Vol 53 (6) ◽  
pp. 640-648 ◽  
Author(s):  
Katherine Kula ◽  
Lindsay N. Hale ◽  
Ahmed Ghoneima ◽  
Sunil Tholpady ◽  
John M. Starbuck
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Cone Beam ◽  
Mucosal Thickening ◽  
Tomography Analysis ◽  
Maxillary Sinuses

Qualitative and Quantitative Assessment of Alveolar Bone Destruction in Adult Rats Using CBCT

2019 ◽  
Vol 36 (4) ◽  
pp. 245-250
Author(s):  
Kıvanç Kamburoğlu ◽  
Gülden Ereş ◽  
Ceren Akgün
Keyword(s):  
Computed Tomography ◽  
Surface Area ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Bone Destruction ◽  
Cone Beam ◽  
Qualitative And Quantitative ◽  
Volume Measurements ◽  
Value Measurement ◽  
Area And Volume

Cone-beam computed tomography (CBCT) has strong potential to be utilized in various aspects of veterinary dentistry. Using ex vivo rat maxillary bone and teeth, the purpose of this study was to compare gray value, surface area, and volumetric measurements of teeth with and without experimental periodontitis by CBCT. Periodontitis was induced in 36 molar teeth, while 36 teeth with a healthy periodontium served as control. Images of each specimen along with teeth were obtained using CBCT. The following measurements for each tooth with periodontitis (n = 36) were recorded: gray value measurement, width, height, depth, surface area, and volume of the alveolar bone loss. For the control group (n = 36), gray value measurement, surface area, and volume of the alveolar bone were recorded. All measurements were repeated after 3 weeks. As the gold standard, the rat maxillas were decalcified and paraffin-embedded for further immunocytochemical study. One-way analysis of variance (ANOVA) was used. Significance level was set at P < .05. Correlation values for gray value, width, height, depth, surface area, and volume measurements were 0.983, 0.966, 0.962, 0.880, 0.998, and 0.999, respectively, for the first and second measurements. One way ANOVA showed statistically significant differences between teeth with and without alveolar bone destruction conducted for gray value, surface area, and volume measurements ( P = .000). Mean gray value, surface area, and volume measurements decreased 56.46%, 81.89%, and 78.56%, respectively, for teeth with alveolar bone destruction in comparison to healthy teeth. Cone-beam computed tomography provided useful qualitative and quantitative information regarding induced periodontitis in the rat maxilla.

Model-based segmentation in orbital volume measurement with cone beam computed tomography and evaluation against current concepts

2015 ◽  
Vol 11 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Maximilian E. H. Wagner ◽  
Nils-Claudius Gellrich ◽  
Karl-Ingo Friese ◽  
Matthias Becker ◽  
Franz-Erich Wolter ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Volume Measurement ◽  
Cone Beam ◽  
Orbital Volume ◽  
Model Based

scholarly journals The prevalence of antral exostoses in the maxillary sinuses, evaluated by cone-beam computed tomography

2016 ◽  
Vol 11 (3) ◽  
pp. 225-230 ◽  
Author(s):  
Meryem Toraman Alkurt ◽  
Ilkay Peker ◽  
Oguzhan Demirel ◽  
Gulsun Akay ◽  
Kahraman Gungor ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Maxillary Sinuses
Sign in / Sign up

Export Citation Format

Share Document