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家庭医生在线 on MSN
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RI在胎儿检查中代表什么指标
RI 是胎儿检查中的一个重要指标,通常用于评估胎儿的血管血流情况,包括脐动脉、大脑中动脉等,与胎儿的生长发育、健康状况、宫内缺氧等密切相关。 1. 定义:RI 即阻力指数,是通过超声检查测量得出的数值,反映血管内血流阻力的大小。 2. 脐动脉 ...
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