Table 2 Diagnostic parameters

Intracranial pressure (mmHg)

Minimum

5

Reference

Reference

Reference

Maximum

17

Mean ± SD

10.24 ± 3.51

^aArterial blood pressure (mmHg)

Minimum

84

0.1125

0.2527–0.3233

0.127

Maximum

101

Mean ± SD

90.61 ± 5.29

Cerebral perfusion pressure (mmHg)

Minimum

71

0.9527

0.9243–0.957

< 0.0001

Maximum

88

Mean ± SD

78.13 ± 4.58

Partial pressure of carbon dioxide (mmHg)

Minimum

4.85

0.9027

0.872–0.9264

< 0.0001

Maximum

5.95

Mean ± SD

5.24 ± 0.27

Straight sinus systolic flow velocity (cm/s)

Minimum

23

0.8662

0.825–0.8982

< 0.0001

Maximum

40

Mean ± SD

31.11 ± 4.9

Straight sinus diastolic flow velocity (cm/s)

Minimum

12

0.5538

0.4451–0.6465

< 0.0001

Maximum

18

Mean ± SD

13.47 ± 1.31

Straight sinus means flow velocity (cm/s)

Minimum

15

0.9298

0.9072–0.947

< 0.0001

Maximum

25

Mean ± SD

20.16 ± 3.23

Middle cerebral artery systolic flow velocity (cm/s)

Minimum

95

0.8724

0.833–0.9031

< 0.0001

Maximum

115

Mean ± SD

103.27 ± 5.64

Middle cerebral artery diastolic flow velocity (cm/s)

Minimum

40

0.7681

0.7016–0.8214

< 0.0001

Maximum

55

Mean ± SD

47.38 ± 4.26

Middle cerebral artery means flow velocity (cm/s)

Minimum

60

0.9

0.8685–0.9243

< 0.0001

Maximum

76

Mean ± SD

69.1 ± 3.81

Optic nerve sheath diameter (mm)

Minimum

4

0.8717

0.832–0.9025

< 0.0001

Maximum

6

Mean ± SD

4.77 ± 0.43

^aMiddle cerebral artery pulsatility index

Minimum

0.85

0.1423

0.2134–0.2809

0.06

Maximum

1.05

Mean ± SD

0.93 ± 0.08