The highlighted parameters are the more specific ones.
Doppler parameter
|
Mild aortic
regurgitation |
Severe aortic
regurgitation |
Pressure half time
|
> 500 ms
|
< 250 ms
|
Vena contracta
|
< 0.3 cm
|
> 0.6 cm
|
Jet width/LVOT
|
< 25%
|
> 65%
|
Regurgitant orifice area
|
< 0.1 cm2
|
=/> 0.3 cm2
|
Aortic flow reversal
|
Early diastolic or none
|
Holodiastolic
|
Regurgitant volume
|
< 30 mL/beat
|
=/> 60 mL/beat
|
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