Evaluation of the anterior and posterior ethmoidal canal by computed tomography

Çankal, Fatih; Apaydın, Nihal; Açar, Hali̇l İbrahi̇m; Elhan, Alai̇tti̇n; Tekdemi̇r, İbrahi̇m; Yurdakul, Mehmet; Kaya, Mustafa; Esmer, Ali Fırat

doi:10.1016/j.crad.2004.04.016

Cited by 59 publications

(67 citation statements)

References 11 publications

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“…This was consistent with the data from the computed tomography (CT) scan by Cankal et al 15 Their numbers were 84% and 16%, respectively. Contrary to our results, Moon et al 8 reported that the AEC was identified as a separate canal in only 14.3% of the cases, and in 85.7% it was attached to the skull base.…”

Section: Discussionsupporting

confidence: 81%

“…7,13,17 Floreani et al 16 measured the range of the posterolateral to anteromedial angle as 30 degrees to 45 degrees as it passed from the orbit to the anterior cranial fossa. Cankal et al 15 observed that AEC left the orbit at an angle of 12 to 50 degrees anteriorly, and the angle was superiorly 0 to 45 degrees and inferiorly 0 to 20 degrees on coronal images. However, none of these studies mention the curve characteristic of the AEA.…”

Section: Discussionmentioning

confidence: 99%

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Morphological Characteristics of the Anterior Ethmoidal Artery in Ethmoid Roof and Endoscopic Localization

Yang

Lü²,

Liao

et al. 2009

Skull Base

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Objectives: To provide anatomical data to help identify and locate the anterior ethmoidal artery (AEA) precisely during endoscopic procedures. Method: We dissected 15 adult cadaver heads, which provided 30 specimens, to study morphological characteristics, courses, and several types of variations. Results: We found the average diameter of the AEA to be 0.80 AE 0.24 mm. In 85.7% of the cases, the artery was seen between the second and third lamella. Other locations were over the roof of the frontal recess cells (10.7%) and the roof of the posterior ethmoid sinus (3.6%). The AEA ran parallel to the ethmoid roof and formed a slight curve. When viewed from the superior side, the angle formed by the long axis of the artery and the lamina papyracea was 60.5 degrees AE 16.4 degrees. In 83.3% of the cases, the anterior ethmoidal canal (AEC) was identified as a separate canal, and in 16.7% the canal was embedded in the ethmoid roof. In 10 of the 30 cases (33.3%), the AEC presented some degree of dehiscence. Conclusion: As a result of these dissections, we found that the AEA's course in the ethmoid roof varies. The morphological characteristics-that the AEA runs parallel to the ethmoid roof, forming a slight posterolateral to anteromedial curve as it passes from the orbit to the cribriform plate-are the most reliable factors used to identify the artery during surgery.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Morphological Characteristics of the Anterior Ethmoidal Artery in Ethmoid Roof and Endoscopic Localization

Yang

Lü²,

Liao

et al. 2009

Skull Base

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“…1,[3][4][5]8,9,[11][12][13][14]40,41 On the other hand, we found few papers describing studies using CT. 6,17,18,33,39 In assessing the anatomical landmarks for locating the anterior ethmoidal artery, we found that the medial notch of the orbit (anterior ethmoidal foramen) and the anterior ethmoidal sulcus on the lateral wall of the olfactory fossae were reliable parameters, since they were seen respectively in 100% and 98% of CT exams. Gotwald et al 17 assessed 40 coronal plane CT exams using similar technical settings as ours, and showed that the medial notch of the orbit and the anterior ethmoidal artery sulcus were found respectively in 95% and 84% of exams.…”

Section: Discussionmentioning

confidence: 99%

“…4,5,12,39 Injury of the anterior ethmoidal artery during endoscopic procedures may occur, with severe consequences. Preoperative knowledge of the course of the artery is essential to avoid complications; this important task belongs to CT.…”

Section: Discussionmentioning

confidence: 99%

Avaliação da artéria etmoidal anterior pela tomografia computadorizada no plano coronal

Souza

Gregório

et al. 2009

Rev. Bras. Otorrinolaringol.

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The anterior ethmoidal artery (AEA) is an important point for frontal and ethmoid sinuses surgery. CT scans can identify landmarks to help the surgeon find the AEA. Aim: To identify the landmarks of the AEA on the orbital medial wall and on the lateral wall of the olfactory fossa. and to correlate the presence of supraorbital ethmoidal cells with spotting the anterior ethmoidal artery canal. Materials and Methods: Retrospective review of 198 direct coronal paranasal sinuses computed tomography (CT) scans from August to December, 2006. Results: Supraorbital pneumatization was seen in 35% (70 scans). The AEA canal was seen in 41% (81 scans). The anterior ethmoidal sulcus was seen in 98% (194 scans) and the anterior ethmoidal foramen was seen in all the scans (100%). Conclusion: The anterior ethmoidal foramen and the anterior ethmoidal sulcus were anatomical landmarks present in almost 100% of the scans studied. There was a correlation between the presence of supraorbital pneumatization and AEA canal visualization.

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“…The AEA lies between the second and third lamella of the lateral nasal wall (ethmoidal bulla and middle turbinate, respectively). 5 The AEA is usually located posterior to the anterior face of the ethmoidal bulla, unless a suprabullar recess exists. The PEA when present is smaller than the AEA and is commonly found at the junction of the roof of the sphenoid and posterior ethmoidal sinuses.…”

Section: 44mentioning

confidence: 99%

Extracranial ligation of ethmoidal arteries before resection of giant olfactory groove or planum sphenoidale meningiomas: 3 illustrative cases with a review of the literature on surgical techniques

Manjila¹,

Cox²,

Smith³

et al. 2013

FOC

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Object There are several surgical techniques for reducing blood loss—open surgical and endoscopic—prior to resection of giant anterior skull base meningiomas, especially when preoperative embolization is risky or not technically feasible. The authors present examples of an institutional experience using surgical ligation of the anterior and posterior ethmoidal arteries producing persistent tumor blush in partially embolized tumors. Methods The authors identified 12 patients who underwent extracranial surgical ligation of ethmoidal arteries through either a transcaruncular or a Lynch approach. Of these, 3 patients had giant olfactory groove or planum sphenoidale meningiomas. After approval from the institution privacy officer, the authors studied the medical records and imaging data of these 3 patients, with special attention to surgical technique and outcome. The variations of ethmoidal artery foramina pertaining to this surgical approach were studied using preserved human skulls from the Hamann-Todd Osteological Collection at the Museum of Natural History, Cleveland, Ohio. Results The extracranial ligation was performed successfully for control of the ethmoidal arteries prior to resection of hypervascular giant anterior skull base meningiomas. The surgical anatomy and landmarks for ethmoidal arteries were reviewed in anthropology specimens and available literature with reference to described surgical techniques. Conclusions Extracranial surgical ligation of anterior, and often posterior, ethmoidal arteries prior to resection of large olfactory groove or planum sphenoidale meningiomas provides a safe and feasible option for control of these vessels prior to either open or endoscopic resection of nonembolized or partially embolized tumors.

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Evaluation of the anterior and posterior ethmoidal canal by computed tomography

Cited by 59 publications

References 11 publications

Morphological Characteristics of the Anterior Ethmoidal Artery in Ethmoid Roof and Endoscopic Localization

Morphological Characteristics of the Anterior Ethmoidal Artery in Ethmoid Roof and Endoscopic Localization

Avaliação da artéria etmoidal anterior pela tomografia computadorizada no plano coronal

Extracranial ligation of ethmoidal arteries before resection of giant olfactory groove or planum sphenoidale meningiomas: 3 illustrative cases with a review of the literature on surgical techniques

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