The ethmoidal arteries: a cadaveric study based on cone beam computed tomography and endoscopic dissection

Ferrari, Marco; Pianta, Luca; Borghesi, Andrea; Schreiber, Alberto; Ravanelli, Marco; Mattavelli, Davide; Rampinelli, Vittorio; Belotti, Francesco; Rodella, Luigi Fabrizio; Maroldi, Roberto; Nicolai, Piero

doi:10.1007/s00276-017-1839-6

Cited by 19 publications

(23 citation statements)

References 29 publications

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“… 8 , 11 A recent study on cone beam CT reported that the MEA was identified in 28.6% of nasal cavities. 20 When present, its mean distance from the skull base was 1.0 mm, which was close to that of the PEA (1.2 mm). Unlike the PEA, an extremely long distance from the skull base was not observed with the MEA ( Figures 3(b) and 4(a) ).…”

Section: Discussionsupporting

confidence: 66%

Anatomy of the posterior and middle ethmoidal arteries via computed tomography

et al. 2018

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Objective:The aim of this study is to investigate the anatomy of the posterior and middle ethmoidal arteries from the viewpoint of an endoscopic sinus surgeon.Methods:Based on 100 computed tomography images, the anatomical position of the posterior ethmoidal artery in relation to the posterior ethmoid cells was classified into five types. The presence of the posterior and middle ethmoidal arteries, their distance from the skull base, and their length exposed in the ethmoid cells were measured. The association of patients’ age and sex, presence of the middle ethmoidal artery, and anatomical type of the posterior ethmoidal artery with the posterior ethmoidal artery distance from the ethmoid roof was analyzed.Results:The posterior ethmoidal artery’s position, relative to the ethmoid cell walls, was most often near the first wall, anterior to the optic canal (92.5%). The posterior ethmoidal artery’s distance from the skull base ranged from 0 to 6.4 mm (mean: 1.2 mm). Older age, longer length of the posterior ethmoidal artery exposed in the ethmoid cells, and absence of the middle ethmoidal artery were positively associated with a longer posterior ethmoidal artery distance from the skull base.Conclusion:Attention should be paid to the posterior and middle ethmoidal arteries.

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Section: Discussionsupporting

confidence: 66%

Anatomy of the posterior and middle ethmoidal arteries via computed tomography

et al. 2018

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“…Moon et al 12 reported that the AEC was located between the second and the third lamella in 87.1% of cases and within the second and the third lamella in 12.9% of cases. Contrary to these reports, Ferrari et al 4 reported that the AEC was located within the second lamella in 3.6% of cases, between the second and the third lamella in 32.1% of cases, and within the third lamella in 64% of cases. Therefore, the anatomic variations of the AEA are wide, and it is essential to be aware of these variants in the surgical field.…”

Section: Introductionmentioning

confidence: 80%

“…Our results showed that there was poor interobserver agreement in the assessment of the dehiscence of the AEC on CT. To the best of our knowledge, the interobserver agreement on assessment of AEC dehiscence on CT has not been previously published. Evaluation of the interobserver agreement has been previously performed in the identification of the AEC on coronal planes 17 and in the assessment of the anatomic landmarks of the AEA on coronal CT. 18 The accuracy of CT in identifying AEC dehiscence has been previously estimated by Ferrari et al, 4 who described poor accuracy of cone-beam CT (slice thickness 2.0-2.5 mm) due to inadequate spatial resolution, making anatomical dissection the best modality to assess this feature.…”

Section: Discussionmentioning

confidence: 99%

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Computed tomography assessment of anterior ethmoidal canal dehiscence: An interobserver agreement study and review of the literature

et al. 2020

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Purpose The anterior ethmoidal artery can be injured in functional endoscopic sinus surgery. The ability of computed tomography (CT) to identify dehiscence of the anterior ethmoidal canal (AEC) has not been widely evaluated. The aim of this study was to evaluate the interobserver agreement in the CT assessment of AEC dehiscence. Methods We conducted a retrospective review of consecutive CT scans of the paranasal sinuses (PNS) between January 1, 2012, and December 31, 2012. Two neuroradiologists separately assessed the presence of AEC dehiscence, the presence of PNS opacification, and the best CT plane to evaluate the AEC. Statistical analysis included descriptive analysis and interobserver agreement (kappa coefficient). Results The AEC was below the skull base in 199 (22.3%) cases. Dehiscence of the AEC was found in 13.2% for reader 1 and in 7.3% for reader 2. The interobserver agreement for identification of AEC dehiscence was only fair (κ = 0.246). The interobserver agreement for the AEC dehiscence in cases with opacification of ethmoidal air cells was substantial (κ = 0.754). Conclusion The suboptimal interobserver agreement could potentially limit the usefulness of CT scans for routine assessment of AEC dehiscence. In patients with PNS opacification, CT scans could still add valuable information regarding AEC dehiscence.

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“…The great discrepancy between the expected and observed (29%) incidence of alveolar anesthesia after type D EMM prompted us to analyze the neural anastomotic network around the ASAN (ASAN‐NAN). In view of its excellent spatial resolution, cone‐beam computed tomography (CBCT) was used to study the course of the superior alveolar nerve. Furthermore, modular extensions of type D EMM were designed in a preclinical setting with the intent to limit injury to the ASAN‐NAN.…”

Section: Classification Of Emms Published By Our Groupmentioning

confidence: 99%

Anterior superior alveolar nerve injury after extended endoscopic medial maxillectomy: a preclinical study to predict neurological morbidity

Schreiber

Mattavelli

Ferrari

et al. 2017

Int Forum Allergy Rhinol

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The ethmoidal arteries: a cadaveric study based on cone beam computed tomography and endoscopic dissection

Abstract: CBCT was adequate in identifying and localizing EAs. In addition, it can be used to exclude the presence of MEA and dehiscence of ethmoidal canals, whereas the accuracy in detecting these anatomic variants was low.

Cited by 19 publications

References 29 publications

Anatomy of the posterior and middle ethmoidal arteries via computed tomography

Anatomy of the posterior and middle ethmoidal arteries via computed tomography

Computed tomography assessment of anterior ethmoidal canal dehiscence: An interobserver agreement study and review of the literature

Anterior superior alveolar nerve injury after extended endoscopic medial maxillectomy: a preclinical study to predict neurological morbidity

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