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Related Experiment Video

Updated: Jun 5, 2026

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
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Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Published on: May 24, 2021

Three-directional acceleration phase mapping of myocardial function.

Felix Staehle1, Bernd A Jung, Simon Bauer

  • 1Department of Radiology, Medical Physics, University Hospital Freiburg, Germany.

Magnetic Resonance in Medicine
|January 22, 2011
PubMed
Summary
This summary is machine-generated.

A new MRI technique, acceleration phase mapping, accurately measures heart muscle acceleration. This method shows promise for assessing regional myocardial function in both healthy individuals and patients.

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Related Experiment Videos

Last Updated: Jun 5, 2026

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
11:13

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Published on: May 24, 2021

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Area of Science:

  • Cardiovascular Imaging
  • Magnetic Resonance Imaging
  • Myocardial Mechanics

Background:

  • Assessing regional myocardial function is crucial for diagnosing cardiac diseases.
  • Existing MRI methods for evaluating heart muscle motion have limitations.

Purpose of the Study:

  • To present and validate an optimized acceleration encoded phase contrast MRI method for assessing regional myocardial function.
  • To evaluate the feasibility of this technique at 1.5T and 3T.

Main Methods:

  • Developed an optimized acceleration encoded phase contrast method (acceleration phase mapping) using efficient gradient waveform design.
  • Achieved short echo and repetition times (TE=12-14 ms, TR=15-17 ms) for low acceleration sensitivity (aenc=5-8 m/s²).
  • Validated the technique in phantoms and applied it to 10 healthy volunteers at 1.5T and 3T, comparing results with standard phase contrast MRI.

Main Results:

  • Demonstrated feasibility of assessing left ventricular myocardial acceleration in radial, circumferential, and longitudinal directions.
  • Observed characteristic patterns of systolic and diastolic acceleration and deceleration.
  • Found good correlation (r=0.45-0.68) between directly measured and derived myocardial acceleration dynamics.

Conclusions:

  • Acceleration phase mapping is a feasible MRI technique for evaluating regional myocardial acceleration.
  • The method provides valuable insights into systolic and diastolic heart muscle dynamics.
  • Further studies are warranted to explore its clinical applications in various cardiac conditions.