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B-scan ultrasonography in optic nerve lesions
Documenta Ophthalmologica. Advances in Ophthalmology
|January 29, 1982
Summary
B-scan ultrasonography can identify optic nerve abnormalities, even with opaque media. This diagnostic method reveals characteristic patterns in conditions like retrobulbar neuritis and Leber
Area of Science:
- Ophthalmology
- Medical Imaging
- Neuro-ophthalmology
Background:
- Introduction to B-scan ultrasonography using Coleman's apparatus at the Royal Dutch Eye Hospital.
- Focus on evaluating the optic nerve and associated pathologies.
Observation:
- Assessment of the normal optic nerve echo pattern.
- Identification of abnormalities such as disc excavation or prominence, detectable even with opaque ocular media.
- Analysis of echo pattern anomalies in retrobulbar neuritis.
Findings:
- Retrobulbar neuritis exhibits characteristic echo pattern anomalies in a high percentage of cases, serving as an objective diagnostic marker.
- Leber's optic atrophy presents a distinct and typical echographic pattern.
- Echographic images of optic nerve glioma and optic nerve displacement (secondary to melanoma metastasis) are presented.
Implications:
- Ultrasonography provides objective diagnostic criteria for optic nerve conditions, particularly when clinical examination is limited by media opacity.
- The study highlights the utility of B-scan ultrasonography in diagnosing challenging neuro-ophthalmological cases.
- Echographic pattern recognition aids in differentiating various optic nerve pathologies.