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Peripheral venous contrast echocardiography

J B Seward, A J Tajik, D J Hagler

    The American Journal of Cardiology
    |February 1, 1977
    PubMed
    Summary
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    Contrast echocardiography effectively detects intracardiac shunts using peripheral venous injections. This noninvasive method accurately identifies and localizes right-to-left shunts in various cardiac defects.

    Area of Science:

    • Cardiovascular Imaging
    • Echocardiography
    • Medical Diagnostics

    Background:

    • Contrast echocardiography visualizes blood flow using echo-producing agents.
    • Recent advancements allow evaluation of various cardiac defects.
    • Key properties include downstream visualization and loss of echo quality after capillary transit.

    Purpose of the Study:

    • To assess the feasibility of contrast echocardiography using superficial peripheral venous injections.
    • To evaluate the clinical usefulness of this technique in detecting and localizing intracardiac right-to-left shunts.
    • To analyze specific flow patterns associated with certain congenital heart defects.

    Main Methods:

    • Performed contrast echocardiography in 60 patients with diverse cardiac defects.

    Related Experiment Videos

  • Utilized superficial peripheral venous injections for contrast agent administration.
  • Analyzed echograms for echo patterns indicative of shunting and localization.

    • Main Results:

    • Superficial peripheral venous injections were feasible and produced reproducible echograms.
    • Echogram quality was comparable to central (caval) injections.
    • Right-to-left shunts were successfully localized at atrial, ventricular, or intrapulmonary levels.
    • Characteristic flow patterns were identified for tricuspid atresia and common ventricle.

    Conclusions:

    • Contrast echocardiography with peripheral venous injections is a feasible and useful noninvasive technique.
    • It accurately detects and localizes intracardiac right-to-left shunts.
    • The method aids in diagnosing specific congenital heart conditions like tricuspid atresia and common ventricle.