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What is the Normal Extraocular Muscle Value for the Superior rectus/levator complex?
3.9mm - 6.8mm
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What is the Normal Extraocular Muscle Value for the Lateral rectus?
2.2mm - 3.8mm
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What is the Normal Extraocular Muscle Value for the Inferior rectus?
1.6mm - 3.6mm
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What is the Normal Extraocular Muscle Value for the Medial rectus?
2.3mm - 4.7mm
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What is the Normal Extraocular Muscle Value for the Sum of all muscles?
11.9mm - 16.9mm
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List Extraocular Muscle Disorders
- Thyroid eye disease (Graves' ophthalmopathy),
- Myositis,
- Tumors,
- Venous congestions,
- Trauma,
- Muscle thinning
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What are the characteristics of the Extraocular Muscle Disorder; Thyroid ophthalmopathy?
- Med-high Reflectivity,
- Irregular Structure,
- Normal Insertions
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What are the characteristics of the Extraocular Muscle Disorder; Myositis?
- Low Reflectivity,
- Regular Structure,
- Thickened Insertions
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What are the characteristics of the Extraocular Muscle Disorder; Tumors?
- Low-Med Reflectivity,
- Regular Structure,
- Normal Insertions
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What are the characteristics of the Extraocular Muscle Disorder; Venuous congestion?
- Med-High Reflectivity,
- Variable Structure,
- Normal Insertions
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What are the characteristics of the Extraocular Muscle Disorder; Hematoma?
- Low-Med Reflectivity,
- Regular Structure,
- Variable Insertions
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