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Related Experiment Videos

Intravascular ultrasonic imaging.

J M Tobis1, D Mahon, M Moriuchi

  • 1The Division of Cardiology, University of California, Irvine, USA.

Texas Heart Institute Journal
|January 1, 1990
PubMed
Summary

A novel intravascular ultrasonic imaging catheter provides real-time, cross-sectional views of coronary arteries. This technology aids in assessing arterial wall thickness and tissue characteristics for improved diagnosis and intervention.

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Area of Science:

  • Cardiovascular imaging
  • Medical device technology
  • Interventional cardiology

Background:

  • Conventional imaging is insufficient for in vivo human coronary artery evaluation.
  • Need for high-resolution, intraluminal imaging of arterial structures.

Purpose of the Study:

  • To develop and evaluate an intravascular ultrasonic imaging catheter.
  • To assess its utility in characterizing coronary artery walls.

Main Methods:

  • A 20-MHz transducer integrated into a catheter.
  • Mechanical rotation at 1800 rpm for real-time imaging.
  • Cross-sectional imaging up to the catheter surface.

Main Results:

  • The catheter provides real-time (30 frames/sec) cross-sectional images.

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  • Preliminary studies show potential for assessing arterial wall thickness and tissue characteristics.
  • Distinguishes normal from diseased arterial structures.

    • Conclusions:

    • The intravascular ultrasonic imaging catheter is a valuable tool for preoperative assessment.
    • It aids in distinguishing arterial wall structures during interventions.
    • It assists in evaluating the outcomes of therapeutic interventions.