How much does a four-dimensional ultrasound cost to check if the fetus is developing normally? When is it most suitable to do it?

Patient's question:

No

Doctor's answer:

You can have a Down syndrome screening at weeks 15-20 of pregnancy to understand the intellectual development of the fetus. Within weeks 22-26 of pregnancy, a 4D color Doppler ultrasound can be performed for a structural anomaly scan to determine if the fetus has any major malformations and the development status of its main organs.