ArticleSurgical and radiologic anatomy : SRA2022
Normative measurements of the superior oblique and inferior oblique muscles by magnetic resonance imaging.
Article in Surgical and radiologic anatomy : SRA, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Morphometry of extraocular muscles and investigation of their relationship with axial length of eye.International ophthalmology · 2025Article
- Magnetic resonance imaging thresholds and diagnostic accuracy in unilateral congenital superior oblique muscle palsy using the ESA method.Scientific reports · 2025Article
- Correlation between extraocular muscle enlargement and thyroid autoantibodies in thyroid eye disease.Japanese journal of ophthalmology · 2024Article
- Recurrent inferior oblique myositis and its outcomes.BMJ case reports · 2024Article
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5 authors.
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Abstract
purposeNormative oblique muscle data may help to diagnose pathological enlargement of the oblique muscles. We aim to describe the normative values of the superior and inferior oblique muscles in an Australian cohort on T1-weighted MRI and fat suppressed contrast enhanced T1-weighted MRI.
methodsA retrospective review of patients who underwent 3 T orbital MRI. The healthy orbits were used to conduct measurements in patients with a unilateral orbital lesion. The maximum diameters of the superior and inferior oblique muscles were measured on coronal planes. The diameter was measured perpendicular to the long axis of the muscles.
resultsThe normal measurements (mean ± SD) on fat suppressed contrast enhanced T1-weighted MRI: superior oblique, 3.0 ± 0.5 mm and inferior oblique, 2.7 ± 0.5 mm. On T1-weighted MRI: superior oblique, 2.8 ± 0.5 mm and inferior oblique, 2.5 ± 0.4 mm. In patients who had both sequences performed, the superior and inferior oblique diameters were significantly higher on the fat suppressed contrast-enhanced T1-weighted MRI than the T1-weighted MRI sequence (p < 0.01).
conclusionOblique muscle enlargement may be seen in a range of orbital diseases. These data may help in diagnosing oblique muscle enlargement. In addition, variations in the measured muscle diameters can be seen according to the scan sequence that is used.
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