MR Calculator:

Regurgitant Volume
-- ml/beat
Regurgitant Fraction
-- %
EROA
-- cm²


Native Mitral Valve — Regurgitation (Reference)

MILD
MODERATE
SEVERE
Regurgitant Volume
< 30 ml/beat
30 – 59 ml/beat
≥ 60 ml/beat
Regurgitant Fraction
< 30%
30 – 49%
≥ 50%
EROA
< 0.20 cm2
0.20 – 0.39 cm2
≥ 0.40 cm2
Vena Contracta Width
< 0.3 cm
Inter­mediate
≥ 0.7 cm
Mitral Inflow
A-wave Dominance
Variable
E-wave Dominance
Prosthetic Mitral Valve — Regurgitation (Reference)

MILD
MODERATE
SEVERE
Regurgitant Volume
< 30 ml/beat
30 – 59 ml/beat
≥ 60 ml/beat
Regurgitant Fraction
< 30%
30 – 49%
≥ 50%
EROA
< 0.20 cm2
0.20 – 0.39 cm2
≥ 0.40 cm2
Vena Contracta Width
< 0.3 cm
0.3 – 0.69 cm
≥ 0.7 cm
Peak Mitral Velocity
-
-
> 1.9 m/s
Pulmonary Venous Flow
Systolic Dominance
Systolic Blunting
Systolic Reversal