AI Article Synopsis
- This study investigates the normal measurements of orbital structures in healthy adults, focusing on differences between males and females.
- Using MRI scans, researchers measured various aspects like the diameters of extraocular muscles and the length of the inter-zygomatic line in 102 individuals, totaling 204 orbits.
- Results showed that males generally have larger dimensions than females in all measured aspects, which may aid in diagnosing orbital conditions and establishing normative values.
Article Abstract
Background: This study aims to determine the normal values of orbital structures according to sex in healthy adults.
Methods: Diameters of extraocular muscles, the width of the optic nerve sheath diameter, the length of the inter-zygomatic line, ocular bulb length, and globe position were measured in the T1-weighed MR (magnetic resonance) images in 204 orbits of 102 individuals.
Results: The mean values of the diameters of the extraocular muscles in males and females were as follows: medial rectus, 3.96 ± 0.52 and 3.58 ± 0.53 mm; lateral rectus, 3.47 ± 0.61 and 3.15 ± 0.48 mm; inferior rectus, 4.47 ± 0.53 and 4.07 ± 0.48 mm; superior rectus, 4.44 ± 0.64 and 4.01 ± 0.56 mm; and superior oblique, 3.68 ± 0.49 and 3.45 ± 0.44 mm. The length of the interzygomatic line in males and females were 102.68 ± 3.89 and 96.95 ± 3.4 mm, the ocular bulb length was 23.33 ± 1.32 and 22.83 ± 1.1 mm, the globe position was 7.66 ± 1.33 and 7.3 ± 1.39 mm, and the width of the optic nerve sheath diameter was 4.65 ± 0.62 and 4.28 ± 0.51 mm, respectively. All measurements were significantly greater for males than for females ( < 0.05).
Conclusions: We believe that a practical and quantitative method will be provided by this study for the diagnosis and determination of the normative values of orbital structures.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11598162 | PMC |
| http://dx.doi.org/10.3390/tomography10110125 | DOI Listing |
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