Uterine artery diameter and flow velocity,S/D value and resistant index (RI)in the pregnant and nonpregnant subjects in plateau wee measured with color Doppler flow imaging system and compared with those measured in flatland.

• 方法 :应用彩色多普勒超声诊断仪测定妊娠期和非妊娠期子宫动脉内径、收缩期峰值与舒张末期血流速度 (S/ D)比值和阻力指数 (ri) ,并与平原地区进行了对比。