Methods A model of hypobaric hypoxia to simulate 7000m was performed.Brain CT, capillary area density and pathologic changes were studied at 24, 48, 72h after hypoxia.

• 方法采用低压缺氧模型在模拟7000m海拔高度条件下观察家猫缺氧24、48和72小时的颅脑CT表现、脑组织毛细血管面积密度的变化及病理改变。