Fig. 9
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 female patient aged 26 years old diagnosed with unexplained infertility shows RI of right and left uterine arteries were 0.81 and 0.86 respectively with mean RI 0.83, S/D ratios of right and left uterine arteries were 4.51 and 7.68 respectively with mean S/D ratio 6.09, and PI of right and left uterine arteries were 2.08 and 2.94 respectively with mean PI 2.51