The results showed that as the ICP went up,the time av-eraged mean (TAM) and the end--diastolic velocity (Vd) decreased and the pulsatility index (PI) in-creased.

• 结果发现,随颅内压增高,FVmca平均流速(TAM)和舒张期末流速(Vd)下降,脉动指数(PI)升高。