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Related Experiment Videos

A fast computed tomographic imaging method for myocardial perfusion

Y H Liu1, N H Shu, E L Ritman

  • 1Department of Physiology and Biophysics, Mayo Medical School, Rochester, MN 55905.

American Journal of Cardiac Imaging
|December 1, 1993
PubMed
Summary
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Fast x-ray computed tomography generates indicator dilution curves to estimate tissue perfusion and blood volume. This technique reveals regional blood flow, vascular volume, and transfer function in perfused tissues.

Area of Science:

  • Medical Imaging
  • Physiology
  • Biophysics

Background:

  • Indicator dilution curves are crucial for understanding tissue perfusion.
  • Assessing regional parenchymal perfusion and intravascular blood volume is vital in physiological studies.
  • Vascular bed transfer function provides insights into microcirculation dynamics.

Purpose of the Study:

  • To demonstrate the utility of fast x-ray computed tomography in generating indicator dilution curves.
  • To explore the estimation of regional parenchymal perfusion and intravascular blood volume using this method.
  • To assess the heterogeneity of perfusion and blood volume, and to determine the vascular bed transfer function.

Main Methods:

  • Utilizing fast x-ray computed tomography (CT).

Related Experiment Videos

  • Administering intravascular injection of a roentgen contrast agent.
  • Generating indicator dilution curves in perfused tissues.

    • Main Results:

    • Successfully generated indicator dilution curves using fast x-ray CT.
    • Enabled estimation of regional parenchymal perfusion.
    • Allowed quantification of intravascular blood volume and its heterogeneity.
    • Provided data for vascular bed transfer function analysis.

    Conclusions:

    • Fast x-ray computed tomography is an effective tool for generating indicator dilution curves.
    • The technique allows for comprehensive assessment of tissue perfusion parameters.
    • This method offers valuable insights into the microcirculation and physiological status of perfused tissues.