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Table 4 Differences in Regurgitant Fraction Classification.

From: Improved accuracy in flow mapping of congenital heart disease using stationary phantom technique

 

Regurgitant Fraction Classification

 

None

Mild

Moderate

Severe

Change

BAV, Aorta

Phantom On

4 (36%)

5 (45%)

2 (18%)

0 (0%)

2 (18%)

 

Phantom Off

3 (27%)

5 (45%)

2 (18%)

1 (9%)

 

ToF, RVOT

Phantom On

1 (6%)

5 (31%)

3 (19%)

7 (44%)

5(31%)

 

Phantom Off

2 (13%)

3 (19%)

7 (44%)

4 (25%)

 
  1. The number of patients (and percentage) that have no (0%), mild (<20%), moderate (20-40%) or severe (>40%) regurgitant fraction (RF), based on flow mapping with (phantom on) or without (phantom off) phantom correction are shown. Change represents the number (and percentage) of patients that changed clinical classification when using the different methods of measurement. BAV = bicuspid aortic valve, ToF = Tetrology of Fallot, RVOT = right ventricular outflow tract.