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Ultrasonic arteriography: implications in patient management

K C Bodily, B Modene, P M Chikos

    The Western Journal of Medicine
    |September 1, 1981
    PubMed
    Summary

    Noninvasive ultrasonic arteriography accurately estimates carotid artery stenosis. This method correctly categorized 83% of arteries, showing high accuracy for detecting significant 50%-99% diameter reductions.

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    Area of Science:

    • Vascular Surgery
    • Diagnostic Imaging
    • Cardiovascular Ultrasound

    Background:

    • Carotid artery stenosis is a significant risk factor for stroke.
    • Accurate noninvasive methods are crucial for assessing carotid bifurcations.
    • Contrast arteriography is the gold standard but is invasive.

    Purpose of the Study:

    • To evaluate the accuracy of the Hokanson Ultrasonic Arteriograph in estimating carotid artery stenosis.
    • To compare noninvasive ultrasonic measurements with contrast arteriography findings.

    Main Methods:

    • Forty-six carotid bifurcations were studied using the Hokanson Ultrasonic Arteriograph.
    • Internal carotid arteries were categorized based on Doppler signal and oscilloscopic image for percent diameter reduction.
    • Results were compared to findings from contrast arteriograms interpreted by a blinded vascular radiologist.

    Main Results:

    • Overall, 83% of arteries were correctly categorized by the ultrasonic arteriograph.
    • Detection of 50%-99% diameter reduction stenosis was 89% accurate.
    • Sensitivity and specificity for detecting 50% or greater stenosis were both 96%.

    Conclusions:

    • The Hokanson Ultrasonic Arteriograph provides an accurate noninvasive estimation of carotid artery stenosis.
    • This ultrasound technique demonstrates high sensitivity and specificity for detecting significant carotid stenosis.
    • Ultrasonic arteriography is a reliable tool for prescreening and assessing carotid bifurcations.

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