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. Author manuscript; available in PMC: 2018 Apr 13.
Published in final edited form as: Nat Rev Nephrol. 2014 Jul 8;10(9):531–540. doi: 10.1038/nrneph.2014.103

Figure 1. Uterine artery Doppler velocimetry findings in the second trimester of pregnancy.

Figure 1

A. Normal findings. B. Abnormal findings, indicated by either the presence of bilateral uterine artery early diastolic notches (arrows) or a mean pulsatility index (calculated as [peak systolic velocity – end diastolic velocity]/time averaged velocity, averaged across both uterine arteries), above the 95th percentile for gestational age.