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Table 2 CSF hydrodynamic properties measured in supine and upright

From: Upright versus supine MRI: effects of body position on craniocervical CSF flow

Measurements

Group Average

%Change from Upright

Paired t-test (p-value)

Upright

Supine

CSF Stroke volume (cm3/cycle)

0.33 ± 0.13

0.52 ± 0.19

57.6

6.73E−06

Total systolic CSF volume displaced (cm3/cycle)

0.38 ± 0.13

0.56 ± 0.21

47.4

6.26E−06

Total diastolic CSF volume displaced (cm3/cycle)

− 0.35 ± 0.12

− 0.57 ± 0.19

62.9

2.46E−06

Peak systolic CSF flow (cm3/s)

2.79 ± 0.73

2.98 ± 0.91

6.8

0.10

Peak diastolic CSF flow (cm3/s)

− 0.98 ± 0.25

− 1.71 ± 0.48

74.5

1.70E−08

Peak systolic CSF velocity (cm/s)

1.06 ± 0.32

1.16 ± 0.35

9.4

0.16

Peak diastolic CSF velocity (cm/s)

− 0.37 ± 0.13

− 0.68 ± 0.24

83.8

1.06E−07

Area of CSF space (cm2)

2.71 ± 0.58

2.64 ± 0.68

− 2.6

0.48

  1. Percentage change was calculated as follows: ((supine-upright)/upright)*100
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Fluids and Barriers of the CNS

ISSN: 2045-8118