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Classification of human maxillar sinuses according to their geometric features
S Anagnostopoulou1, D Venieratos, N Spyropoulos
1Department of Anatomy, Athens University, School of Medicine.
Maxillary sinus shape classification using a V/Sh coefficient revealed four geometric types: semi-ellipsoid, paraboloid, hyperboloid, and cone. Asymmetry between sinuses suggests individual sinus radiography is necessary.
Area of Science:
- Anatomy
- Anthropology
- Medical Imaging
Background:
- The maxillary sinuses are complex anatomical structures.
- Understanding their morphology is crucial for clinical applications.
- Previous classifications lacked a standardized geometric approach.
Purpose of the Study:
- To classify maxillary sinus morphology based on geometric principles.
- To investigate the asymmetry between paired maxillary sinuses.
- To explore the clinical relevance of sinus morphology in imaging.
Main Methods:
- Geometric analysis of 119 maxillary sinus casts from dry skulls.
- Measurement of sinus volume (V), basal surface area (S), and height (h).
- Classification into four types (semi-ellipsoid, paraboloid, hyperboloid, cone) using the K coefficient (V/Sh).
Main Results:
- Maxillary sinuses were classified into four geometric categories: semi-ellipsoid (15%), paraboloid (30%), hyperboloid (47%), and cone (8%).
- A significant degree of asymmetry was observed, with 56% of paired sinuses belonging to different classes.
- The K coefficient proved effective for geometric classification.
Conclusions:
- A novel geometric classification system for maxillary sinuses has been established.
- Significant inter-sinus asymmetry highlights the importance of individual sinus assessment.
- This classification may enhance the interpretation of Computed Tomography and Echography of maxillary sinuses.
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