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ultrasound diagnosis of fatal anomalies

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APPENDIX

PI

3,5

3,0

2.5

2,0

1,5

1,0

0,5

0,0

22

RI

1,2

1,1

1,0

0,9

0,8

0,7

0,6

95 %

0,5

0,4

0,3

5 %

0,2

0,1

0,0

24 26 28 30 32 34 36 38 40 42

24

28

32

36

40

Weeks

Weeks

95 %

5 %

Harrington et al., Ultras. in Obstet. Gynecol. 6, 1996

K.H. Schaffer, Salzburg

Fig. 19.45 Pulsatility index: medial cerebral artery. Fig. 19.46 Resistance index: medial cerebral artery.

cm/s

100

90

80

95 %

70

60

50

40

30

20

5 %

1

10

0

24

28

32

36

40

Wochen

2

K.H. Schaffer, Salzburg

Fig. 19.47

Maximum systolic flow velocity: middle cerebral artery

3

4

5

361

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