Methods The ratio of B/A, PI, RI of orbit artery was detected in 42 cases with EPH gestosis and control group (90 healthy pregnant women).

方法测定42例妊高征孕妇眼动脉血流参数（B/A、PI、RI）并与90例正常孕妇作对照分析以观察血流参数变化。

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Lesion vascularity, pulsatility index (PI), and resistive index (ri) of the vessels detected were analyzed. And correlated with histologic results.

分析病变处血流的搏动指数(PI)和阻力指数(R I)与病理组织学结果的关系。

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The result demonstrated the accordance of this two methods. The dynamics of blood flow in hemodialysis vascularity was evaluated by pulsatility index(PI) and resistence index(RI).

对搏动指数（PI）和阻力指数（RI）用于评价透析血管血流动力学方面的变化作了初步分析。

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