Table 1 Blood flow and vein size.

From: Dilatation of the bridging cerebral cortical veins in childhood hydrocephalus suggests a malfunction of venous impedance pumping

 

Age

Years

Control

Blood flow

Arterial inflow ml/min

SSS outflow ml/min

ST outflow ml/min

SSS % return%

ST % returnml/min

  

Mean

9.2

996

558

162

56.5

16.2

  

SD

4.1

216

132

60

8.2

4.3

  

n

22

       
  

Control

Vein size

       

BCV area mm2

Galen area mm2

Mean

9.6

     

8.5

11.9

SD

3.3

     

2.7

4.9

n

72

       
  

Hydrocephalus

Mean

9.6

1056

474

144

43.6

14.0

10.4

11.2

SD

3.3

336

240

42

15.1

3.5

3.3

3.9

n

18

       

MWU

0.76

0.70

0.06

0.34

0.003*

0.09

0.0008*

0.60

  1. BCV bridging cortical vein, ml/min milliliters per minute, mm2 millimeters squared, MWU Mann–Whitney U test, SD standard deviation, SSS superior sagittal sinus, ST straight sinus; *significance < 0.05.
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