Fig. 5
From: Role of uterine artery Doppler in assessment of unexplained infertility
a, b Transvaginal Doppler ultrasound of both uterine arteries (a right, b left) of fertile female (control group) aged 28 years old shows RI of right and left uterine arteries were 0.61 and 0.53 respectively with mean RI 0.57, S/D ratios of right and left uterine arteries were 2.59 and 2.1 respectively with mean S/D ratio 2.34, and PI of right and left uterine arteries were 0.95 and 0.75 respectively with mean PI 0.85.