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Related Experiment Videos

Cat optic nerve imaging with metrizamide.

J P Davis, V M Haughton, G J Harris

    Investigative Ophthalmology & Visual Science
    |March 1, 1979
    PubMed
    Summary
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    Metrizamide optic nerve thecography effectively visualized orbital lesions in cats. Seizures associated with metrizamide contrast medium were preventable with diazepam preadministration.

    Area of Science:

    • Ophthalmology
    • Neuroradiology
    • Veterinary Medicine

    Background:

    • Iatrogenic orbital lesions can affect the optic nerve and its surrounding subarachnoid space.
    • Accurate imaging is crucial for diagnosing and managing optic nerve sheath abnormalities.

    Purpose of the Study:

    • To evaluate the utility of metrizamide optic nerve thecography in cats with iatrogenic orbital lesions.
    • To assess the ability of metrizamide to delineate optic nerve displacement and sheath abnormalities.

    Main Methods:

    • Metrizamide optic nerve thecography was performed on five cats with induced orbital lesions.
    • The contrast medium's behavior within the optic nerve sheath was analyzed.

    Main Results:

    • Optic thecograms successfully demonstrated optic nerve displacement.

    Related Experiment Videos

  • Obstruction and extravasation within the optic nerve sheath subarachnoid space were visualized.
  • Metrizamide-induced seizures were prevented by diazepam administration.

    • Conclusions:

    • Metrizamide optic nerve thecography is a valuable tool for evaluating optic nerve sheath pathology in cats.
    • Diazepam effectively mitigates the risk of seizures associated with metrizamide use.