A morphometric evaluation of the optic canal: Comparative study between computerized tomographic study and direct anatomic study

Kalthur, Sneha G and Periyasamy, Radhakrishnan and Kumar, Sandeep and Gupta, Chandni and D’Souza, Antony Sylvan (2015) A morphometric evaluation of the optic canal: Comparative study between computerized tomographic study and direct anatomic study. Saudi Journal of Medicine & Medical Sciences, 3 (3). pp. 204-208. ISSN 1658-631X

[img] PDF
SaudiJMedMedSci_2015_3_3_204_161997 before oct.pdf - Published Version
Restricted to Registered users only

Download (12MB) | Request a copy

Abstract

Objective: The objective of this study is to probe into the normal anatomy of the optic canal by comparison of dry skull and computed tomography (CT) images of live subjects. Materials and Methods: The optic canals of 107 normal subjects were examined by thin layer CT scan images in axial and coronal sections. 25 dry skulls were examined by using sliding Vernier caliper. The width, height of optic canal in both opening (cranial and orbital side) were measured. The medial, lateral walls (LWs) of optic canal were also measured. By using mathematical formula, the area of optic canal was calculated. Student’s t-test was applied to compare the results statistically. Results: The height of optic canal at orbital and cranial opening in both CT and direct study was 4.12 ± 0.63 mm, 3.6 ± 0.76 mm and 5.7 ± 0.76 mm, 5.17 ± 0.81 mm, respectively. The width at orbital and cranial opening in both CT and direct was 2.98 ± 0.56 mm, 4.59 ± 0.83 mm and 4.74 ± 0.47 mm, 5.48 ± 0.76 mm, respectively. The length of medial and LW in both CT and direct study was 10.63 ± 1.72 mm, 9.2 ± 1.33 mm and 9.1 ± 1.46 mm, 8.66 ± 1.31 mm, respectively. The area was 1.43 cm² in direct study and in CT study it was 1.19 cm². Conclusion: Given parameters may be helpful for surgeons to plan the proper way to approach the optic canal.

Item Type: Article
Uncontrolled Keywords: Computed tomography scan; direct; measurements; optic canal.
Subjects: Medicine > KMC Manipal > Anatomy
Medicine > KMC Manipal > Radiology
Depositing User: KMC Library
Date Deposited: 17 Dec 2015 15:31
Last Modified: 17 Dec 2015 15:31
URI: http://eprints.manipal.edu/id/eprint/144857

Actions (login required)

View Item View Item