Parameter |
Difference in combined kidney
volume (cm3) (95% CI)
Normal fetuses IUGR fetuses
|
Fetal biometric indices |
|
|
Head circumference (SDS) |
0.63 (0.7, 0.98) |
0.91 (0.57, 1.23)* |
Abdominal circumference (SDS) |
1.06 (0.91, 1.56) |
1.76 (1.47, 2.05)* |
Femur length (SDS) |
1.15 (1, 1.67) |
1.03 (0.71, 1.35)* |
head circumference/
abdominal circumference (SDS |
0.78(0.34, 1.67) |
1.71 (1.34, 2.09)* |
Estimated fetal weight (SDS) |
0.71 (0.12, 1.68) |
1.77 (1.46, 2.08)* |
Doppler indices |
|
|
Umbilical artery, PI |
-3.17 (-5.5, -0.39) |
-2.74 (-4.55, -0.92) |
Middle cerebral artery (PI) |
-0.64 (-0.18, 1.09) |
0.46 (-0.41, 1.33) |
Renal artery (PI) |
0.91 (0.29, 1.11) |
0.87 (0.22, 1.51)* |
Renal artery V max |
-3.04 (-2.87,-1.16) |
-2.14 (-355,-0.68) |
PI, pulsatility index; V max, peak systolic velocities with time. SDS, standard deviation score. Values are regression coefficients (95% CI) and reflect the difference in kidney
volume per unit increase in fetal growth and fetal blood flow characteristic |
