Figure 4A: The image shows the acquisition of the placental volume using surface rendering mode.
Figure 4B: The image shows the off-line analysis of the placental volume.
Figure 4C: The image shows the placental volume (mm3) at E13 and E18. The values are medians, and the whiskers extend to the 10th and 90th percentiles. There is an increase in placental volume with advancing gestation (P=0.03).