Which is better, 2D or 4D color Doppler ultrasound for major anomaly scan?

Patient's question:

My friend and I are pregnant together. We'll soon be six months pregnant. A few days ago, she invited me to do a comprehensive ultrasound screening. Should we do a 3D or 4D color Doppler ultrasound for the comprehensive screening?

Doctor's answer:

4D and 3D color ultrasounds can both be used for comprehensive fetal anomaly screening, but it ultimately depends on the doctor's skill level. If the doctor is highly skilled, then 3D color ultrasound can also be used for comprehensive fetal anomaly screening.
During the second trimester of pregnancy, fetal growth and development are particularly rapid, so it's important to pay close attention to nutrition. Make sure to drink plenty of milk and consume foods rich in calcium, while also getting enough sunlight exposure.
4D color ultrasound can be used for professional treatment, with dietary therapy as a supplementary approach in daily life. It's essential to maintain a balanced diet and avoid foods.

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