Assessment of Aortic Stenosis by Cardiac Magnetic Resonance Imaging: Quantification of Flow, Characterization of Myocardial Injury, Transcatheter Aortic Valve Replacement Planning, and More

Magn Reson Imaging Clin N Am. 2019 Aug;27(3):427-437. doi: 10.1016/j.mric.2019.04.004.

Abstract

Cardiac MR (CMR) imaging contributes uniquely to the comprehensive assessment and management of aortic stenosis (AS), beyond the information provided by transthoracic echocardiography. The severity of AS and subsequent ventricular remodeling response can be assessed using cine images and phase-contrast mapping. CMR imaging also identifies myocardial tissue characteristics, which are valuable markers of left ventricular decompensation and adverse outcomes in AS. CMR imaging may be used as an alternative modality for transcatheter aortic valve replacement (TAVR) planning and post-TAVR management. This article explores the clinical utility of CMR imaging evaluation.

Keywords: Aortic stenosis (AS); Extracellular volume (ECV); Global longitudinal strain (GLS); Late gadolinium enhancement (LGE); Phase-contrast mapping; T1 mapping; Transcatheter aortic valve replacement (TAVR).

Publication types

  • Review

MeSH terms

  • Aortic Valve Stenosis / diagnostic imaging*
  • Aortic Valve Stenosis / physiopathology*
  • Blood Flow Velocity / physiology
  • Contrast Media
  • Gadolinium
  • Heart / diagnostic imaging*
  • Heart / physiopathology*
  • Humans
  • Image Enhancement / methods
  • Magnetic Resonance Imaging / methods*
  • Magnetic Resonance Imaging, Cine
  • Severity of Illness Index
  • Transcatheter Aortic Valve Replacement*
  • Ventricular Remodeling / physiology

Substances

  • Contrast Media
  • Gadolinium