Scott et al. [11] revealed that renal artery PIs were higher
in normally growing foetuses with oligohydramnios than in
normally growing foetuses with normal AFIs. These findings
also support the literature. In another study, Silver et al. [12]
reported that there was a statically significant correlation
between the intrauterine growth restriction (IUGR) and foetal
renal volume. This may be because the number of nephrons
is probably an indicator of the renal volume. Additionally, this
study supported the hypothesis that IUGR might be associated
with congenital oligonephropathy, hypertension, and
other vascular diseases [12].