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Left ventricular myocardial tagging

F E Rademakers1, J Bogaert

  • 1University Hospital Antwerp, Department of Cardiology, Edegem, Belgium. radem(a)uia.ua.ac.be

International Journal of Cardiac Imaging
|June 1, 1997
PubMed
Summary
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Nuclear Magnetic Resonance myocardial tagging is a non-invasive method to precisely measure heart muscle deformation. This technique allows for detailed global and regional analysis of cardiac function throughout the heart cycle.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Biophysics

Background:

  • Cardiac deformation analysis is crucial for diagnosing heart conditions.
  • Non-invasive techniques are preferred for patient safety and repeated assessments.
  • Existing methods may lack regional specificity or quantitative accuracy.

Purpose of the Study:

  • To detail the application of Nuclear Magnetic Resonance myocardial tagging.
  • To highlight its capability in quantifying myocardial deformation.
  • To explain its use in regional and global cardiac function assessment.

Main Methods:

  • Utilizes Nuclear Magnetic Resonance (NMR) imaging with presaturating pulses to create myocardial tags.
  • Employs perpendicular short- and long-axis imaging sequences.

Related Experiment Videos

  • Reconstructs a 3D model of the left ventricle from tagged images, divided into 32 myocardial cuboids.

    • Main Results:

    • Enables precise quantification of myocardial deformation, both globally and regionally.
    • Provides known 3D coordinates of myocardial cuboid corners at various cardiac cycle points.
    • Facilitates computation of global and regional strains and quantitative shape measures.

    Conclusions:

    • Nuclear Magnetic Resonance myocardial tagging is a powerful tool for non-invasive cardiac deformation quantification.
    • The technique offers detailed regional and global insights into myocardial mechanics.
    • It supports advanced analysis of cardiac function and shape throughout the cardiac cycle.