Ductus Venosus S/A Ratio

                                 Rizzo G, Capponi A, Arduini D, Romanini C.

                       Ductus venosus velocity waveforms in appropriate and

                                          small for gestational age fetuses.

                                          Early Hum Dev 1994;39(1):15-26

 

GA

(wks)

50th

Percentile

5th

Percentile

95th

Percentile

20

2.66

1.7

3.82

21

2.62

1.66

3.77

22

2.57

1.61

3.73

23

2.52

1.56

3.68

24

2.48

1.52

3.63

25

2.43

1.47

3.59

26

2.39

1.43

3.54

27

2.34

1.38

3.5

28

2.29

1.33

3.45

29

2.25

1.29

3.4

30

2.2

1.24

3.36

31

2.16

1.2

3.31

32

2.11

1.15

3.27

33

2.06

1.1

3.22

34

2.02

1.06

3.17

35

1.97

1.01

3.13

36

1.93

0.97

3.08

37

1.88

0.92

3.04

38

1.83

0.87

2.99

39

1.79

0.83

2.94

40

1.74

0.78

2.9