Abstract
Cardiovascular magnetic resonance (CMR) parametric mapping techniques enable the direct visualization and quantification of changes in myocardial T1, T2, T2* relaxation times and extracellular volume fraction. Recent updates on clinical applications of CMR parametric mapping techniques are reviewed in this article. CMR parametric mapping techniques are useful in the evaluation of multiple conditions, including iron overload, amyloid infiltration, glycosphingolipid accumulation, myocardial edema, and fibrosis. An advantage of parametric mapping over conventional tissue characterization sequences is that these techniques are quantitative, allowing for standardization of measurements and assessment of longitudinal changes over time. Parametric mapping techniques are useful in clinical practice, including aiding in establishing a diagnosis, monitoring disease progression, evaluating response to therapy, and informing prognosis. This article provides a summary of the existing evidence for the clinical application of cardiac parametric mapping techniques.
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