Evaluation of basilar expansion and internal septa of human sphenoidal sinus using cone beam computed tomography

Authors

  • Marcio Yara Buscatti Discipline of Radiology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo
  • Karina Cecília Panelli Santos Discipline of Radiology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo
  • Emiko Saito Arita Discipline of Radiology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo
  • Junichi Asaumi Oral and Maxillofacial Radiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
  • Plauto Christopher Aranha Watanabe Discipline of Radiology, Department of Stomatology, School of Dentistry, University of São Paulo, Ribeirão Preto, SP
  • Jefferson Xavier Oliveira Discipline of Radiology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, SP

DOI:

https://doi.org/10.11606/issn.2357-8041.clrd.2014.68234

Keywords:

Paranasal Sinuses, Sphenoid Sinus, Anatomy, Cone Beam Computed Tomography.

Abstract

The objective of this study was to assess the types and frequencies of basilar expansion of the sphenoidal sinus and internal septa by using cone beam computed tomography. Archived images from 300 adult subjects of both genders were retrieved. A descriptive analysis relating age and gender to basilar expansion of the sphenoidal sinus and internal septa types and frequencies was performed. The associations between basilar expansion of the sphenoidal sinus, internal septa and gender for each age group were assessed using the chi-square test or Fisher’s exact test. Among all the images evaluated, 69% showed basilar expansion of the sphenoidal sinus, of which 81% were considered critical. Internal septa were observed in 60% of the images. There was no relationship between the presence of basilar expansion of the sphenoidal sinus and gender and age. Internal septa were independent of gender; however, of the subjects older than age 40, 36% had only a main septum, 6% had accessory septa, and 18% had both types of septa. Cone beam computed tomography is an accurate method that should be considered for the evaluation of this anatomic segment in order to avoid unnecessary exposure to radiation.

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Author Biography

  • Karina Cecília Panelli Santos, Discipline of Radiology, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo
    Departamento de Estomatologia

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Published

2014-09-08

Issue

Vol. 20 No. 3 (2014)

Section

Original Research

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