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Normative ranges of extraocular muscles on T1-weighted MRI
| Study | Lateral rectus | Medial rectus | Superior muscle group | Inferior rectus | ||||
|---|---|---|---|---|---|---|---|---|
| Mean (mm) | Range (± 2 SD) | Mean (mm) | Range (± 2 SD) | Mean (mm) | Range (± 2 SD) | Mean (mm) | Range (± 2 SD) | |
| Our study | 3.4 | 2.2–4.7 | 4.1 | 3.1–5.2 | 4.3 | 3.0–5.6 | 4.6 | 3.2–6.1 |
| Ozgen et al. [3] | 3.7 | 2.6–4.8 | 4.0 | 3.2–4.9 | 4.4 | 3.1–5.6 | 4.8 | 3.7–6.0 |
| Shen et al. [4] | 4.5 | 2.7–6.3 | 5.1 | 3.3–6.9 | 4.8 | 2.6–7.0 | 5.4 | 3.4–7.4 |
