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我院自1994年10月～1995年10月对27例围产期缺氧缺血性脑损伤的患儿于生后第2天及第9天进行彩色多谱勒超声显像检查，观察其双侧大脑中动脉、前动脉和后动脉的血流情况，分别进行频谱分析，并与同龄的正常足月新生儿25例进行对照，现报道如下。1对象与方法1．1观察对象1.1.1窒?
Our hospital from October 1994 to October 1995 on 27 cases of perinatal hypoxic-ischemic brain damage in children after birth on the first two days and nine days of color Doppler ultrasound examination to observe its Bilateral cerebral artery, anterior and posterior arteries of the blood flow were spectrum analysis, and with the same age normal full-term neonates in 25 cases were controlled, are reported below. 1 objects and methods 1.1 observed objects 1.1.1 stifled?