方法：经颅多普勒超声测定血流速度，同步记录血压，改变血压，绘制脑血流自动调节曲线，并进行分类和确定自动调节的上、下限。

METHODS: The blood velocities and blood pressure was recorded simultaneously and the curves of CBFA were analyzed and classified into classical and non-classical pattern.

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方法：经颅多普勒超声测定血流速度，同步记录血压，改变血压，绘制脑血流自动调节曲线，并进行分类和确定自动调节的上、下限。

METHODS: The blood velocities and blood pressure was recorded simultaneously and the curves of CBFA were analyzed and classified into classical and non-classical pattern.

youdao