ArticleBMJ open ophthalmology2019
Evaluation of optic canal anatomy and symmetry using CT.
Article in BMJ open ophthalmology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Morphometric Analysis of Foramina in the Middle Cranial Fossa of Dogs: A Retrospective Cone-Beam CT Study.Animals : an open access journal from MDPI · 2026Article
- CT evaluation of the relationship between optic canal, anterior clinoid process, optic strut, caroticoclinoid foramen, and dimensions of sella turcica based on sphenoid sinus pneumatization patterns.BMC medical imaging · 2025Article
- MReye-Seg: development and validation of an automated MRI pipeline for standardised ocular and orbital morphometrics.Eye (London, England) · 2025Article
- Automated landmark-based symmetric and standard alignment of skull base structures on CT.Neuroimage. Reports · 2025Article
- Article
- Asymmetry indicates more severe and active disease in Graves' orbitopathy: results from a prospective cross-sectional multicentre study.Journal of endocrinological investigation · 2020Article
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4 authors.
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Abstract
objectiveWe aim to describe the anatomy and symmetry patterns of the optic canal in patients having undergone maxillofacial CT imaging.
methodsIn this retrospective chart review, we included all patients who received sinus and maxillofacial CT at the University of North Carolina hospitals between 2008 and 2016, without facial or cranial fractures or other medical conditions that would affect optic canal size. We measured the length of ≥75% enclosed canal, minimum cross-sectional area and minimum diameter bilaterally using iNtuition TeraRecon (Durham, North Carolina) and compared bilateral symmetry using a 20 % difference threshold. Each parameter above was compared among white, black, non-white and non-black patients.
resultsOf 335 patients, the mean canal length was 5.61±2.22 mm. The mean minimum area was 11.84±3.11 mm
conclusionOptic canal asymmetry is not uncommon. It may affect risk of papilloedema severity, explain cases of unilateral or asymmetric papilloedema and possibly asymmetric glaucoma.
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