title: Study of Anthropometric Measurements of the Anterior Ethmoidal Artery using Three-dimensional Scanning on 300 Patients.
abstract: IntroductionThe anterior ethmoidal artery (AEA) is one of the main arteries that supply both the nasal mucosa and the ethmoid sinuses. The AEA shows variability regarding its distance from adjacent structures. Several studies have developed techniques to identify the AEA.ObjectiveThis study aimed to compare the measurements from the AEA to the ethmoid bulla and to the frontal beak by using computed tomography of the face, while identifying their intraindividual and interindividual variations.MethodsWe analyzed 300 CT scans of the face performed at the CT scan Center at Hospital. The average age of subjects was 36 ± 15.1 years (range 4-84).ResultsWe found that the average distance from the AEA to the ethmoid bulla was 17.2 ± 1.8 mm and the distance from the AEA to the frontal beak was 15.1 ± 2.2 mm. Regarding the average distance from the AEA to the frontal beak (AEA-frontal beak), there was a difference between the right and left sides, with the former being 0.4 mm higher on average than the latter. Among the age groups, there was a significant difference of distances between the AEA and the ethmoid bulla (AEA-ethmoid bulla), which were shorter in the ≤ 12 years group. There was a positive and significant correlation between both measurements analyzed, with low values (high) of AEA-ethmoid bulla distance corresponding to low values (high) of AEA-frontal beak distance.ConclusionThe measurements obtained adds anatomical knowledge that can serve as a parameter in frontal and ethmoid sinus surgery.
authors.affiliation: IPO - Hospital Paranaense de Otorrinolaringologia LTDA - Núcleo de Ensino e Pesquisa, Curitiba, Paraná, Brazil.
authors.forename: Vinicius Tomadon
authors.initials: VT
authors.lastname: Bortoli
authors.affiliation: IPO - Hospital Paranaense de Otorrinolaringologia LTDA - Núcleo de Ensino e Pesquisa, Curitiba, Paraná, Brazil.
authors.forename: Rafael Ferri
authors.initials: RF
authors.lastname: Martins
authors.affiliation: IPO - Hospital Paranaense de Otorrinolaringologia LTDA - Núcleo de Ensino e Pesquisa, Curitiba, Paraná, Brazil.
authors.forename: Krystal Calmeto
authors.initials: KC
authors.lastname: Negri
keywords: anatomy; computed tomography; cone-beam; ethmoid sinus