Volumetric growth analysis of maxillary sinus using computed tomography scan segmentation: a pilot study of Indonesian population (original) (raw)
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Analyzing the width of the maxillary sinus from private practice in Bogor, Indonesia
Scientific dental journal, 2018
Background: X-ray examinations are still a frequent diagnostic tool used by doctors in Indonesia. However, there is an apparent lack of descriptive data regarding the size and location of the maxillary sinus in Indonesian people. Objective: The aim of this study is to provide descriptive data on the size and location of the maxillary sinus among patients in the city of Bogor, West Java, Indonesia. Methods: Sixty eligible subjects aged 17 to 70 years old were randomized into six groups: male and female patients between 17 and 25 years old; male and female patients between 26 and 45 years old; and male and female patients aged 46 or older. Radiographic pictures were taken using the X-mind Novus Digital Panoramic X-ray unit and data were measured using the software Digora for Windows. Results: Using an analysis of variance, we found that men have significantly larger maxillary sinus dimensions than women (79.05 mm compared to 66.33 mm). It also reveals that there are significant differences (p<0.05) between male and female groups; whereas 2 groups aged less than 46 years old are significantly different with group aged 46 years or older in both gender. Conclusion: The study demonstrates that the size and location of maxillary sinus differ significantly between men and women in Bogor and that they follow a specific trend.
Computed tomography-based volumetric tool for standardized measurement of the maxillary sinus
PloS one, 2018
Volume measurements of maxillary sinus may be useful to identify diseases affecting paranasal sinuses. However, literature shows a lack of consensus in studies measuring the volume. This may be attributable to different computed tomography data acquisition techniques, segmentation methods, focuses of investigation, among other reasons. Furthermore, methods for volumetrically quantifying the maxillary sinus are commonly manual or semiautomated, which require substantial user expertise and are time-consuming. The purpose of the present study was to develop an automated tool for quantifying the total and air-free volume of the maxillary sinus based on computed tomography images. The quantification tool seeks to standardize maxillary sinus volume measurements, thus allowing better comparisons and determinations of factors that influence maxillary sinus size. The automated tool utilized image processing techniques (watershed, threshold, and morphological operators). The maxillary sinus v...
Introducing a simple method of maxillary sinus volume assessment based on linear dimensions
Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft, 2018
Measuring sinus volume in a general practice clinic is a complex and time-consuming procedure, requiring experience in the use of radiological methods In the presented research, the automatically estimated maxillary sinus volume was compared with maxillary sinus volume assessed with mathematical formulas used to calculate the volume of spheres and pyramids. The starting point for the statistical analysis were specific measurements of the sinuses. We wanted to discover which geometric shape has the volume that is nearest to the automatically estimated volume. The study was performed using samples of CT scans of pediatric patients age 1-17. The dimensions (maximal width, maximal height, maximal length) were used for manual calculations. For the automatic volume calculation, the CT Image Segmentation algorithm (Syngo Via for Oncology, Siemens) was used. Pearson's correlation coefficient was applied to analyse the interrelationship between automatically and manually calculated volum...
Acta Odontologica Scandinavica, 2017
Objective: This study aimed to compare sinus volume and dimensions in patients with high-, low-, and normal-angle vertical growth patterns using cone-beam computed tomography (CBCT). Materials and methods: According to skeletal vertical face growth patterns, 60 adults (31 female, 29 male, average age: 29.90 ± 10.91 years) were divided into three groups equally: high-angle, low-angle, and normal-angle groups. Cephalometric tracings were obtained from CBCT images and SN-GoGn (angle between Sella-Nasion line and Gonion-Gnathion line) cephalometric angular measurements used for the classification of skeletal vertical pattern evaluations. Morphological and dimensional changes in the maxillary sinuses were evaluated on CBCT images. Data were analyzed using the oneway ANOVA, Kruskall-Wallis, and Mann-Whitney U statistical tests. Results: There were no statistically significant differences among the groups in terms of age (p > .05). The low-angle vertical growth pattern group showed significantly better results than the high-angle group in the right maxillary sinus length parameter (p < .05). Conclusion: According to the results, the high-angle subjects showed statistically lower values in terms of maxillary sinus length and width than the low-angle subjects. There were no effects of vertical face development on right and left maxillary sinus volumes. The results of this study may be useful in maxillary sinus evaluation when planning for orthognathic surgery and orthodontic mini screw application in various vertical face patterns.
Relative area measurement of maxillary sinus by computed tomography
RGO - Revista Gaúcha de Odontologia, 2014
OBJECTIVE: To evaluate the relative area of the maxillary sinus in edentulous posterior maxilla with regard to linear area, bone septa and sinus pathologies. METHODS: A retrospective longitudinal study was conducted of tomographic exams in 60 individuals between 35 and 75 years of age, with the inclusion criteria being the uni- or bilateral edentulous posterior maxilla. Measurements were taken by the program in 101 maxillary sinuses. The horizontal and vertical measurements of each sinus were multiplied and resulted in a linear area in mm2. RESULTS: Of the 101 maxillary sinuses evaluated, 14 presented sinus pathologies (13.86%) and 22 (21.78%) with bone septa. The mean mesio distal distance was 38.4 mm (p ≤ 0.05), mean height 34. 5 mm (p ≤ 0.05) and mean linear area of 1335.88 mm² (p = 0.05). The Student's-t and analysis of variance (ANOVA) tests were applied for statistical analysis There were no statistically significant difference in the height and width of the edentulous max...
2014
Objectives: The paranasal sinuses are complex anatomical structures with a significant inter-individual variation. The dimensions of maxillary sinuses are particularly significant when considering endoscopic sinus surgery . The aims of this study were to estimate different dimensions of the maxillary sinuses measured on head CT, and their relations to sex of the individuals. Materials and Methods: Cranial computerized tomographic images (CT) of 200 normal subjects between the age groups of 18 and 80 years were observed in this study. The height, width, and depth of the maxillary sinuses were measured with a Philips Brilliance 64 CT. The statistical analysis for sex and age comparison for all the parameters was done. Results: The mean width, height, and depth of maxillary sinus in male on both right and left side were 27.8, 28.2, 39.9, 39.6, and 40.0, 39.7 mm but in females were 26.6, 26.7, 36.8, 37.1, and 36.6, 37.4 mm. The discriminative analysis showed that the accuracy of maxilla...
The maxillary sinuses are largest of the paranasal sinuses and contained within the body of maxilla. After birth, the maxillary sinus enlarges with the growing maxilla, though it is only full developed following eruption of the permanent dentition. When teeth are lost, the maxilla reverts towards its infantile shape. Thus, its height diminishes and the alveolar process is reabsorbed. In the present study, anteroposterior, transverse and dimensions of maxillary air sinus of 90 subjects divided into 9 age groups were measured by CT scan. The study concluded that there was gradual increase in all three dimension from age groups 0-25 years and thereafter, a decrease in dimensions was observed.
Linear and volumetric assessment of the maxillary sinus
Scripta Scientifica Medicinae Dentalis, 2016
INTRODUCTION: Pneumatization of the maxillary sinus can be triggered throughout a patient's life. Prior to any sinus floor augmentation procedure, it is imperative to conduct a linear and volumetric assessment of the maxillary sinus.
Morphometric Study of Maxillary Air Sinus using Computed Tomography
International Journal of Anatomy Radiology and Surgery, 2017
Introduction: Maxillary air sinus is the largest paranasal air sinus. It exhibits dimorphic features and remains intact in victims who are incinerated therefore it can be used for identification of individual and gender determination. CT is most reliable method for measurements of maxillary sinus dimensions and anatomical variations related to it. Aim: The present study was conducted to find out the volume and maximum Anteroposterior (AP) diameter of the maxillary air sinus and the anatomical variations related to it. Materials and Methods: CT images of 100 healthy adults were subjected to the measurements of volume and maximum AP diameter of right and left maxillary air sinus using Autocontour software. Student's 't'-test was used to find out significant difference between males and females. Results: The volume of right and left maxillary sinuses in males were found to be 12.95±4.48 cm3, 13.26±3.94 cm3, and in females 10.59±3.37 cm3, 10.16±2.92 cm3 respectively. A stati...
Materials, 2020
This study aims to evaluate changes of maxillary sinuses in growing subjects. Cone Beam Computed Tomography (CBCT) scans of 146 patients were divided according to gender and age (6–8, 9–11, 12–14 years old). Left, right and total maxillary sinus volume (MSV-R, MSV-L, MSV-Tot) and surface (MSS-R, MSS-L, MSS-Tot), left and right linear maximum width (LMW-L, LMW-R), depth (LMD-R, LMD-L) and height (LMH-R, LMH-R) were calculated using Mimics Research 22. Kruskal–Wallis Test and showed a statistically significant increase in both genders for all variables. Pairwise comparisons in females are always statistically significant in: LMH-R, LMH-R, MSS-Tot, MSV-Tot. All other variables showed a statistical significant increase between 9–11 and 12–14, and between 6–8 and 12–14 age groups, apart from LMSW-R, LMSW-L, LMSD-R, LMSD-L between 6–8 and 12–14 age groups. Pairwise comparisons in males are always and only statistically significant between 9–11 and 12–14, and between 6–8 and 12–14 groups. ...