Right kidney parameter Gestational age (Mean ± SD) Group 1
Normal fetuses
(N=76)
Group2
IUGR fetuses
(N=43)
Length (mm)   29.3 ± 5.4 38.9 ± 3.9 38.2 (3.5)
Width (mm) 22.3 ± 2.9 17.1 ± 2.7*
Depth (mm) 21.6 ± 2.8 17.6 ± 3.4*
Volume (cm3) 11.2 ± 3.0 8.3 ± 4.3
Combined kidney volume (cm3)

Relative kidney volume (cm3)
21.6 ± 4.9

4.2 ± 1.3
15.2 ± 5.0**

2.9 ± 2.04**
Data are expressed as mean ± SD unless otherwise indicated, IUGR: intrauterine growth restriction
*P< 0.05, **P< 0.001
Table 1: Right fetal kidney measurements in normal and IUGR fetuses after 25 weeks of gestation.
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