ArticleThe Journal of laryngology and otology2026
Sinus pneumatisation and Keros type as predictors of anterior ethmoidal artery configuration: a 3D-reconstructed computed tomography analysis.
Article in The Journal of laryngology and otology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThis study aimed to examine anatomical factors predicting anterior ethmoidal artery type.
methodsParanasal sinus computed tomography images from adult patients were reviewed. Anterior ethmoidal artery types were categorised based on skull base relationship: type A (embedded within skull base), type B (in a protruding canal) and type C (separated from skull base). Statistical analyses encompassed inter-type comparisons, multinomial logistic regression and correlation analysis.
resultsAnterior ethmoidal artery types differed significantly in lateral lamella height and Keros classification, with type C showing the greatest lateral lamella height and predominant Keros III. Type C was additionally characterised by enlarged frontal sinus volume, increased volume and height of frontal recess anterior cells and higher supraorbital ethmoid cell prevalence. The anterior ethmoidal artery-skull base distance demonstrated significantly positive correlations with lateral lamella height, frontal sinus volume and the volume and height of frontal recess anterior cells.
conclusionMore extensive pneumatisation of frontal sinus and ethmoid cells and increased lateral lamella height might predict a free-running anterior ethmoidal artery.
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