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Paranasal sinuses anatomic variants: 64-slice CT evaluation.

D Mazza1, E Bontempi, A Guerrisi

  • 1mzzdra@hotmail.com.

Minerva Stomatologica
|July 13, 2007
PubMed
Summary
This summary is machine-generated.

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A 64-slice CT scan revealed common anatomical variations in paranasal sinuses, including agger nasi cells (52%) and concha bullosa (29%). These findings highlight the prevalence of sinus anatomical variants in patients.

Area of Science:

  • Radiology
  • Anatomy
  • Medical Imaging

Background:

  • Anatomical variations of the paranasal sinuses are common.
  • These variations can influence sinus function and surgical outcomes.
  • Accurate identification of these variants is crucial for diagnosis and treatment.

Purpose of the Study:

  • To evaluate anatomical variants of the paranasal sinuses using 64-slice CT.
  • To determine the prevalence of specific anatomical variants.
  • To assess the utility of multidetector CT in visualizing these structures.

Main Methods:

  • A retrospective analysis of 100 paranasal sinus CT scans (64-slice Siemens Somatom Volume-Zoom).
  • Patients included 45 women and 55 men, aged 18-70 years.
  • Axial acquisition with multiplanar reconstruction (MPR) was used to identify variants: concha bullosa, Haller cells, uncinate process abnormalities, agger nasi cells, ethmoidal bulla, Onodi cell, and middle turbinate curvature abnormalities.

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Main Results:

  • Agger nasi cells were the most frequent variant (52%).
  • Concha bullosa was observed in 29% of patients.
  • Other variants included middle turbinate curvature abnormalities (11%), ethmoidal bulla (15%), Onodi cell (9%), Haller cells (5%), and uncinate process abnormalities (5%).

Conclusions:

  • 64-slice CT provides high-resolution imaging for paranasal sinus anatomy.
  • Anatomical variants are frequently encountered in the osteomeatal complex.
  • The prevalence of these variants aligns with previous research findings.