Key result
Cardiac T1 mapping provides a reproducible, quantitative method for characterizing diseased myocardium, including the identification of myocardial edema, fibrosis, and infiltrative diseases.
Why the study?
Advanced CMR sequences such as T1 mapping provide reproducible, quantitative tissue interrogation promising for characterizing diseased myocardium across various cardiomyopathies.
This review outlines the principles, techniques, and clinical applications of cardiac T1 mapping for quantitative tissue characterization in various cardiomyopathies.
May aid myocardial characterization in cardiomyopathies; leaves open prospective validation before routine use.
A key advantage of cardiac magnetic resonance (CMR) imaging over other cardiac imaging modalities is the ability to perform detailed tissue characterization. CMR techniques continue to evolve, with advanced imaging sequences being developed to provide a reproducible, quantitative method of tissue interrogation. The T 1 mapping technique, a pixel‐by‐pixel method of quantifying T 1 relaxation time of soft tissues, has been shown to be promising for characterization of diseased myocardium in a wide variety of cardiomyopathies. In this review, we describe the basic principles and common techniques for T 1 mapping and its use for native T 1 , postcontrast T 1 , and extracellular volume mapping. We will review a wide range of clinical applications of the technique that can be used for identification and quantification of myocardial edema, fibrosis, and infiltrative diseases with illustrative clinical examples. In addition, we will explore the current limitations of the technique and describe some areas of ongoing development. Level of Evidence: 5 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2020;51:1336–1356.
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Aherne et al. (2019) conducted a review in Cardiomyopathies. Cardiac T1 mapping was evaluated. Cardiac T1 mapping provides a reproducible, quantitative method for characterizing diseased myocardium, including the identification of myocardial edema, fibrosis, and infiltrative diseases.