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Noninvasive Assessment of Cardiac Abnormalities in Experimental Autoimmune Myocarditis by Magnetic Resonance Microscopy Imaging in the Mouse
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Imaging Methods: Magnetic Resonance Imaging.

Katharine E Thomas1, Anastasia Fotaki2, René M Botnar2,3,4

  • 1University of Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, United Kingdom (K.E.T., V.M.F.).

Circulation. Cardiovascular Imaging
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This summary is machine-generated.

Cardiovascular magnetic resonance (CMR) detects myocardial inflammation by identifying tissue changes like edema and fibrosis. This review covers current and emerging CMR techniques for imaging cardiac immune system activation.

Keywords:
cardiac imaging techniquesimmune systeminflammationmagnetic resonance imaging

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Area of Science:

  • Cardiovascular Imaging
  • Cardiac Pathology
  • Immunology

Background:

  • Myocardial inflammation, triggered by the cardiac immune system, causes distinct myocardial tissue changes.
  • Cardiovascular magnetic resonance (CMR) is the non-invasive imaging standard for characterizing myocardial tissue and detecting inflammation-related signal alterations.
  • Detected changes include edema, hyperemia, capillary leak, necrosis, and fibrosis.

Approach:

  • Conventional CMR methods like T2-weighted imaging, T1/T2-mapping, and contrast-enhanced imaging are used.
  • Emerging techniques aim for simultaneous multi-parameter imaging for comprehensive tissue characterization.
  • Advanced methods focus on detecting subtle immune-mediated changes, such as immune cell activity and cardiac metabolism.

Key Points:

  • CMR effectively detects myocardial inflammation and its sequelae.
  • T2-weighted imaging, T1/T2-mapping, and contrast-enhanced imaging are established techniques.
  • Novel CMR approaches offer enhanced sensitivity for immune cell activity and metabolism.

Conclusions:

  • CMR is crucial for diagnosing and monitoring myocardial inflammation.
  • Emerging CMR technologies promise more detailed insights into cardiac immune responses.
  • This review provides an overview of CMR principles for imaging myocardial inflammation.