1.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.
1.目的本用彩色多普勒检
孕妇子宫胎
床螺旋动脉搏动指数(PI),阻力指数(RI),
高征的发生、发展及
后。