Evaluation of Anterior Ethmoidal Artery on Coronal CT Scan Paranasal Sinus

Abstract

Objective: To determine the frequency of different anatomical landmarks seen for identifying the course of anterior
ethmoidal artery, in patients presenting at Fauji Foundation hospital, Rawalpindi for CT paranasal sinus.
Methodology: A total of 140 patients in this prospective cross-sectional study were included on coronal computed
tomography of paranasal sinuses. The duration of the study was six months. All the examinations were done on
Aquilion 64 slice Toshiba CT scan. Only the coronal image was used for study and analysis.
Results: Patients had an average age of 40.77±15.62. Supra orbital pneumatization was 52.14 percent. The anterior
ethmoidal sulcus and foramen were visible in 96.43% and 98.57% of scans. No age group had age-related changes in
anterior ethmoidal foramen or sulcus (p-values = 0.52 and 0.95). Age did not affect supraorbital pneumatization
(p=0.70). Women (98.6%) had the Anterior Ethmoidal Sulcus more than men (94%), although the difference was not
significant (p-value 0.19). Gendered supraorbital pneumatization was similar (p=0.73).
Conclusion: This study found that key anatomical landmarks for identifying the AEA—the anterior ethmoidal foramen,
sulcus, and supraorbital pneumatization—are consistently present across age and gender groups, with no significant
differences. These results confirm the reliability of these landmarks in guiding surgical approaches to the AEA.
Keywords: Anterior ethmoidal artery; CT scan paranasal sinus; Supraorbitary pneumatization