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Related Concept Videos

Imaging Studies for Cardiovascular System IV: CMRI01:21

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Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
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CMR Parametric Mapping as a Tool for Myocardial Tissue Characterization.

Vanessa M Ferreira1, Stefan K Piechnik2

  • 1Oxford Centre for Clinical Magnetic Resonance Research, Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom. vanessa.ferreira@cardiov.ox.ac.uk.

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Summary

Cardiovascular magnetic resonance (CMR) parametric mapping offers advanced myocardial tissue characterization. This technique provides quantitative insights into cardiac health, aiding in the diagnosis of various heart conditions.

Keywords:
Cardiovascular magnetic resonanceMyocardial tissue characterizationParametric mappingT1-mappingT2-mapping

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Area of Science:

  • Cardiovascular Magnetic Resonance (CMR) Imaging
  • Medical Physics
  • Cardiac Diagnostics

Background:

  • Cardiovascular magnetic resonance (CMR) is the gold standard for cardiac imaging.
  • Parametric mapping represents the 4th era of myocardial CMR development, moving beyond conventional techniques.
  • Conventional CMR relies on relative intensity variations, while parametric mapping visualizes absolute tissue MR properties.

Purpose of the Study:

  • To review the background, principles, and clinical applications of CMR parametric mapping.
  • To highlight the advantages of parametric mapping, including quantitative comparisons and detection of diffuse disease.
  • To discuss current challenges and future directions in CMR parametric mapping.

Main Methods:

  • Review of T1, T2, and ECV mapping techniques.
  • Discussion of magnetic resonance physics principles.
  • Analysis of clinical applications, imaging protocols, and reporting guidelines.

Main Results:

  • Parametric mapping provides direct, quantitative visualization of myocardial tissue properties (T1, T2, T2*).
  • It enables detection of diffuse disease not visible with conventional CMR, without contrast agents.
  • Clinical utility demonstrated across a range of cardiac diseases, including acute myocardial injury and heart failure.

Conclusions:

  • CMR parametric mapping has matured into a valuable clinical tool.
  • It offers added value in assessing cardiac diseases and aids in clinical management.
  • Parametric mapping promises advanced myocardial tissue characterization beyond conventional CMR methods.