Abstract
Objective This study aims to detect possible differences in fetal brain volumes between growth-restricted
fetuses (FGR), small-for-gestational-age (SGA) fetuses with normal Doppler indices,
and appropriate-for-gestational-age fetuses (AGA).
Study Design Three-dimensional measurements of fetal brain volume and umbilical artery and middle
cerebral artery (MCA) pulsatility index (PI) and resistance index (RI) were made in
80 AGA fetuses, 68 SGA fetuses with normal Doppler indices, and 68 FGR with brain-sparing
effect between 32 and 36 weeks of gestation.
Results MCA-PI and MCA-RI were significantly lower in FGR group compared with the other two
groups (p < 0.001). Brain volume was significantly lower in SGA and FGR groups compared with
AGA group (p < 0.001).
Conclusion Brain volume is significantly lower in SGA and FGR groups compared with AGA group.
Keywords
brain volume - Doppler - fetal growth restriction - small-for-gestational-age fetuses
- appropriate-for-gestational-age fetuses