Rol de la Resonancia Magnética en Cardiopatía Isquémica

Authors

  • Gonzalo Pereira R. Hospital Clínico Universidad de Chile. Centro de Imagenología.
  • Juan Carlos Díaz P. Hospital Clínico Universidad de Chile. Centro de Imagenología.
  • Rodrigo Hermann P. Hospital Clínico Universidad de Chile. Centro de Imagenología.
  • Claudio Silva F. Hospital Clínico Universidad de Chile. Centro de Imagenología.

Abstract

The magnetic resonance (MR) is a technique in constant evolution for evaluation of coronary artery disease. Cine-MR techniques are currently the main imaging tools for measurement of several parameters of global ventricular function such as ventricular volumes, ejection fraction and the ventricular mass. MR has shown less variability inter-observer than other techniques for measurement of ventricular volumes; it does not use radiation and is operator independent. Regional contractile function is also well assessed by cine-MR with visual inspection of wall motion and thickening for the left ventricle. After gadolinium administration, MR can assess myocardial infarct and replacement fi brosis. When the detection of myocardial fi brosis is associated with segmental wall motion analysis by cine images, it can be possible to predict improvement recover of contractile function after revascularization.

Keywords:

Isquemia Miocárdica/diagnóstico, Imagen por Resonancia Magnética, Cardiopatías/diagnóstico