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Related Experiment Videos

Ocular tumor patterns.

D J Coleman

    Bibliotheca Ophthalmologica : Supplementa Ad Ophthalmologica
    |January 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Ultrasonic diagnosis of choroidal tumors uses choroidal excavation and vascular pulsations. These features, identified via A-, B-, and M-scan techniques, aid in detecting ocular tumors.

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    Area of Science:

    • Ophthalmology
    • Medical Imaging
    • Oncology

    Background:

    • Choroidal tumors require accurate diagnostic methods.
    • Current evaluations utilize A-, B-, and M-scan ultrasound techniques.

    Purpose of the Study:

    • To highlight the diagnostic utility of choroidal excavation and vascular pulsations in ultrasonic tumor evaluation.
    • To describe characteristic ultrasound findings in choroidal tumors.

    Main Methods:

    • Employing A-, B-, and M-scan ultrasound techniques for choroidal tumor assessment.
    • Analyzing patterns of choroidal excavation and vascular pulsations.
    • Utilizing color displays to visualize amplitude variations.

    Main Results:

    • Solid, homogeneous tumors create acoustic quiet zones, replacing normal choroidal patterns.

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  • M-scan patterns effectively demonstrate vascularity associated with choroidal tumors.
  • Color displays enhance the visualization of amplitude variations within ocular tumors.

    • Conclusions:

    • Choroidal excavation and vascular pulsations are valuable diagnostic features in ultrasonic evaluation of choroidal tumors.
    • Ultrasound B- and M-scans provide crucial information for diagnosing ocular tumors.
    • Advanced imaging techniques like color displays improve tumor characterization.