Related Experiment Video

Updated: Oct 13, 2026

Optimized System for Cerebral Perfusion Monitoring in the Rat Stroke Model of Intraluminal Middle Cerebral Artery Occlusion
12:15

Optimized System for Cerebral Perfusion Monitoring in the Rat Stroke Model of Intraluminal Middle Cerebral Artery Occlusion

Published on: February 17, 2013

[Cerebral hemodynamics in occlusive diseases of major extracranial arteries]

L I Pyshkina, M R Bekuzarova, L B Tlapshokova

    Zhurnal Nevropatologii I Psikhiatrii Imeni S.S. Korsakova (Moscow, Russia : 1952)
    |January 1, 1989
    PubMed

    Insights

    Doppler ultrasound quantifies blood flow changes in extracranial artery stenosis. Reliable criteria were developed for detecting internal carotid and vertebral artery stenosis severity.

    Area of Science:

    • Vascular Medicine
    • Medical Imaging

    Context:

    • Occlusive disorders of major extracranial arteries affect blood flow.
    • Doppler ultrasound is a key tool for assessing vascular conditions.

    Purpose:

    • To quantify blood flow and velocity in patients with extracranial artery stenosis.
    • To establish reliable criteria for detecting internal carotid artery (ICA) and vertebral artery stenosis.

    Summary:

    • Doppler ultrasound assessed 120 patients, identifying four degrees of stenosis.
    • Specific criteria were developed based on reduced blood flow, velocity, and retrograde flow in the orbital artery.
    • ICA occlusion showed no flow or significant retrograde orbital flow (p < 0.001).

    Impact:

    • Provides reliable criteria for diagnosing and grading extracranial artery stenosis.
    • Enhances understanding of blood flow dynamics in occlusive vascular disorders.
    • Aids in clinical decision-making for patients with cerebrovascular disease.

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