|
WEEK 8 OF
GESTATION |
- Embryo is ± 30 mm at the end of week 8.
- Head, trunk, limbs and umbilical cord can be appreciated.
- Head size > yolk sac size.
|
|
|
|
Relationship between embryo and amniotic cavity |
Cystic rhombenecephalon |
|
|
|
|
3D image at 8.5 wks |
|
|
|
Normal video at 8 weeks of gestation. Video clip of the
Vitelline duct
|
|
|
|
|
|
- Pulsations can be seen in the umbilical cord.
- Central Nervous System.
- Hypoechoic rhombencephalon can be seen.
- Echogenic choroid plexus may be seen.
- Neural tube is imaged as parallel echogenic lines.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- Midgut herniation is present.
- Heart
- 150-170 bpm (heart rate increases from 6-9 weeks before it starts to decline after week 10).
- Fetal movements (trunk and extremities) are now obvious.
