Objective To observe pulsative index (PI), resistant index (RI) of placental helicine arteries by colour Doppler, analyses relation between PI, RI and developing of pregnant hypertension.
目本研究采用彩色多普勒检测孕妇子宫胎盘床螺旋
脉搏
指数(PI),阻力指数(RI),
测妊高征
发生、发展及
后。