10.25241/stomaeduj.2020.7(1).art.3 -abstract

DENTAL RADIOLOGY

Volume, asymmetry and reciprocal relationships between paranasal sinuses: a 3D segmentation study on head CT-scans

DOI: https://doi.org/10.25241/stomaeduj.2020.7(1).art.3

Abstract
Introduction Very little is known about the morphology of paranasal sinuses, especially with respect to symmetry.
Methodology The head CT-scans of 100 patients (50 male, 50 female) were retrospectively analyzed. The volume segmentation of frontal, sphenoid and maxillary sinuses was performed through semi-automatic segmentation. An asymmetry index was extracted, and differences according to sex and side were assessed through ANOVA test (p<0.05). Pearson test was applied to verify possible correlation between age and volume and asymmetry index in different paranasal sinuses and sexes (p<0.05).
Results On average, male sinuses were larger in volume than female ones (p<0.01). Generally, volumes of the three sinuses were significantly related each other in both sexes (correlation coefficients ranging between 0.34 and 0.58). In both sexes, the maxillary sinus was less asymmetric than the other two types, without significant sex-related differences (p>0.05). Significant inverse correlations between sinus volume and asymmetry index were found for the sphenoid and maxillary sinuses in males, and for the maxillary sinus in females. No correlation of sinus volume or asymmetry index with age was found, with the exception of maxillary volume/age in females.
Conclusion The present results may find practical applications in planning surgical procedures involving paranasal sinuses.

Keywords
Anatomy; CT-Scan; Segmentation; Paranasal Sinuses; Surgery.

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The Stomatology Edu Journal (Stoma Edu J) is one of the first Green Open Access journals in the field of dental medicine, publishing well-established authors, but equally committed to encouraging early career researchers and professionals alike to publish their work after a non-partisan, objective, double-blind rigorous peer-reviewed process. The Stomatology Edu Journal (Stoma Edu J) is a Green Open Access journal accessible for free on the Internet, hence no processing, peer review fees or article publishing charges payable by the author are required. A Green Open Access (GOA) journal means that all content is freely available to the user or his/her institution without charge. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. Our aim is to publish in the shortest possible time frame and ensure the rapid dissemination of your work via our journal page, but also through our indexing partners…(read more)

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STOMATOLOGY EDU JOURNAL (Stoma Edu J) is a new international dental journal whose main purpose is to inform researchers, educators, graduates, postgraduates and practitioners about the latest trends in the field, which followed, would bring immediate and lasting benefits to the patients; and about opinions of the most authorized specialists on what is best in current practice, for the good of both, patient and dentist.
STOMATOLOGY EDU JOURNAL (Stoma Edu J) is a peer-reviewed, open access international dental journal to be database indexed, meant to contribute to the development and completion of the medical training of practitioners as Dr. Greene Vardiman Black stated: “the professional man has no right to be other than a continual student”.
Open access journal, means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author.