Markers of myocardial viability

  • Preserved myocardial wall thickness at ECHO, cardiac MR
  • Preserved tracer uptake at single-photon emission computed tomography
  • Lack of enhancement/ or limited subendocardial enhancement at late or delayed gadolinium-enhanced CMR
  • Flow/metabolism mismatch pattern at positron emission tomography
  • Evidence of contractile reserve at dobutamine stress ECHO/CMR