Is high-risk ultrasound the same as four-dimensional ultrasound?

Four-dimensional color Doppler ultrasound is the most important abnormality screening during pregnancy. It is mainly an examination to comprehensively screen the fetal organ system through color Doppler ultrasound between 22 weeks and 25 weeks of pregnancy. Generally, obvious abnormalities and system obstacles of various organs of the fetus can be found and checked in time through four-dimensional screening. Therefore, the purpose of early diagnosis of fetal abnormality can be realized. The high-risk color Doppler ultrasound is suitable for further examination of fetal heart and other systems showing related abnormalities. Therefore, high-risk color Doppler ultrasound and four-dimensional color Doppler ultrasound are different. Their indications are different. However, whether it is high-risk color Doppler ultrasound or four-dimensional color Doppler ultrasound screening abnormalities, further examination is needed to confirm the diagnosis. The most common method of diagnosis is through amniotic fluid puncture.