• Bicuspid aortic valve with doming of its leaflets in systole
  • Bicuspid aortic valve with turbulent flow by color Doppler across the aortic valve
  • Moderate aortic regurgitation 
  • Bicuspid aortic valve 
  • Moderate eccentric aortic regurgitation
  • CW Doppler of the aortic regurgitant jet obtained from the apical five chamber view
  • Pressure half-time (PHT) ranging from 415-463 msec consistent with mild to moderate aortic regurgitation

 

  • Aortic Regurgitation Severity
    • PHT <200ms = Severe aortic regurgitation
    • PHT 200-500 msec = Moderate aortic regurgitation
    • PHT >500 msec = Mild aortic regurgitation

The apical 5 chamber view is a good view to profile flow across the aortic valve.  It is an excellent view to assess for aortic stenosis or regurgitation. 

  • Transducer at cardiac apex
  • Notch at 3-4 o'clock (slight clockwise rotation)
  • 4th or 5th intercostal space 
  • Probe tilted anteriorly (tail down)
  • Aortic stenosis
  • Aortic regurgitation
  • Left ventricular hypertrophy or dilation