@katrina2017 https://utswmed.org/medblog/3d-4d-ultrasound/
From the link above:
2-D, 3-D, and 4-D ultrasounds: What’s the difference?
All ultrasounds use sound waves to create an image of your baby in the womb:
A regular 2-D ultrasound creates a cross-sectional view of your baby.
In a 3-D...