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Related Experiment Videos

Cardiac trauma from angiographic injections. A quantitative study.

J A Abbott, M J Lipton, J Kosek

    Circulation
    |January 1, 1978
    PubMed
    Summary

    This study quantifies contrast jet kinetic energy during angiography to assess cardiac trauma risk. Findings reveal a unique curve predicting potential damage, enabling safer injection flow rates.

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    Area of Science:

    • Cardiovascular research
    • Biomedical engineering
    • Medical physics

    Background:

    • Angiographic contrast injections can potentially cause cardiac trauma.
    • Quantitative assessment of contrast jet energy is needed to understand this risk.

    Purpose of the Study:

    • To verify a mathematical theory for quantifying contrast jet kinetic energy.
    • To relate this energy to potential cardiac wall damage.
    • To define safe angiographic injection parameters.

    Main Methods:

    • Cineangiographic recordings of contrast jets in canine models.
    • Quantification of energy content and dissipation from jet center to edge.
    • Correlation of energy levels with cardiac wall damage thresholds via cineradiology and microscopy.

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    Main Results:

    • All clinical angiographic contrast jets were found to be turbulent.
    • A unique curve, independent of jet Reynolds number, was discovered relating jet penetration to cardiac trauma potential.
    • Calculations allowed for hydraulic energy dissipation assessment and safe flow rate definition.

    Conclusions:

    • The study provides a method to quantify contrast jet energy and predict cardiac trauma.
    • Findings enable the definition of safe injection flow rates for clinical angiography.
    • Potential cardiac trauma can be anticipated and prevented through these calculations.