• Morphologic features indicating high likelihood of impaired LV diastolic function (e.g. left atrial volume, increased wall thickness, impaired LV ejection fraction, signs of constrictive pericarditis)
• Functional parameters:
  • Transmitral flow pattern (E/A ratio, deceleration time)
  • Early diastolic longitudinal tissue velocity at the base of the LV: e’, and ratio E/e’
  • Assessment of systolic pulmonary pressure from peak tricuspid regurgitant velocity
  • Additional parameters, e.g. pulmonary venous flow, may be necessary if primary parameters are inconclusive (see Algorithms)