Cardiovasc Imaging Asia.  2022 Jul;6(3):69-81. 10.22468/cvia.2021.00423.

Principles and Clinical Applications of Feature-Tracking Cardiac Magnetic Resonance Imaging: A Literature Review

Affiliations
  • 1Department of Radiodiagnosis and Imaging, Fortis Escorts Heart Institute, New Delhi, India
  • 2Department of Radiodiagnosis and Imaging, Post graduate Institute of Medical Sciences, Rohtak, India

Abstract

Cardiac magnetic resonance (CMR) imaging has become a major tool for assessing patients with left ventricular dysfunction. CMR-derived volume, function, and late gadolinium enhancement (LGE) are the most important components of cardiac imaging. Recently, the direct assessment of myocardial fiber deformation by strain imaging has shown promise in diagnosing ventricular dysfunction at preclinical stage. There are multiple CMR based techniques for myocardial strain imaging. CMR feature tracking (CMR-FT) is a new, readily available, and convenient technique to evaluate myocardial deformation with high spatial resolution. CMR-FT–derived parameters such as strain, strain rate, torsion, and mechanical dispersion have shown diagnostic and prognostic values in patients with ischemic and nonischemic cardiomyopathies, incremental to left ventricular ejection fraction and LGE. The article reviews the basic principles, clinical applications, strength, and limitations of CMR-FT.

Keyword

Cardiovascular magnetic resonance; Feature tracking; Strain; Heart
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