Group

PI of pulsatility index in middle cerebral artery

Cerebral blood flow

the good prognosis group (n = 31)

1.35 ± 0.86

5.14 ± 1.13

Adverse group (n = 21)

1.95 ± 0.66

4.17 ± 1.21

t value

−3.81

4.12

P value

<0.05

<0.05