ro2
ro2-
Arterial and venous blood samples were collected simultaneously through radial artery and internal jugular catheterization . The cerebral arterio venous differences of oxygen content ( Da - vO2 ) were measured and extracting rate of oxygen ( RO2 ) was calculated .
连续监测MAP、心电图、脉搏氧饱和度和呼气末二氧化碳分压，同步采集动脉血和颈内静脉血作血气分析，计算动－静脉氧含量差（Da－vO2）和脑氧摄取率（ERO2）。