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ECHONOMY
Tools for Echocardiographic Calculations
Muhamed Saric, MD, PhD
New York University
 

Mitral Regurgitation

Reference Values
  Mild
(1+)		 Moderate
(2+)		 Moderate-Severe
(3+)		 Severe
(4+)
EROA
(cm2)		 <0.2 0.20-0.29 0.30-0.39 >0.4
Regurgitant Fraction <30% 30-39% 40-49% >50%
Regurgitant Volume (mL) 30 30-44 45-59 >60
Vena contracta (cm) <0.3 0.3 - 0.7 >0.7

Remarks

Note the 4-5-6-7 pattern of severe mitral regurgitation.

Also notice that regurgitant volumes and fractions are the same for mitral and aortic regurgitation.
 

Calculator

Click here to go to effective regurgitant orifice (EROA) and regurgitant volume calculator.

Reference
ASE 2003 guidelines for the management of patients with valvular heart disease.
J Am Soc Echocardiogr 2003;16:777-802.