PI Calculator:

Regurgitant Fraction
-- %


Important Notes:

RVOT Diameter can be larger than PV Diameter

RVOT VTI > PV VTI due to regurgitative volume inclusion (prox to valve).




Native Pulmonic Valve — Regurgitation (Reference)

MILD
MODERATE
SEVERE
Regurgitant Fraction
< 20%
20 – 40%
> 40%
RV Size
Normal
Normal or Dilated
Dilated
Jet Density & Contour
Soft
Dense
Dense; Early Termination of Diastolic Flow