When can I have a 3D or 4D ultrasound during pregnancy?

Patient's question:

No

Doctor's answer:

During the 22-26 weeks of pregnancy, a 4D color Doppler ultrasound examination for fetal anomaly screening is recommended to assess whether the fetus has any major malformations and the development of major organs.
Recommendation: 4D color Doppler ultrasound can observe the growth and development of the fetus in multiple directions and angles within the uterus, providing accurate scientific evidence for the early diagnosis of congenital external malformations and congenital heart diseases in the fetus.
Previous ultrasound equipment could only examine the physiological indicators of the fetus, but 4D color Doppler ultrasound can also assess the external features of the fetus, such as cleft lip, spina bifida, underdevelopment of the brain, kidneys, heart, and bones, allowing for early treatment.