How many months of pregnancy is it appropriate to do a four-dimensional color Doppler ultrasound?

Four-dimensional color ultrasound is generally performed around six or seven months of pregnancy, which is about 25 to 28 weeks. It is mainly used to observe the child's growth and development, perform fetal fetal malformation examinations, and conduct a comprehensive examination of the digestive system, nervous system, and heart function. Four-dimensional color ultrasound is a very safe examination technology and generally has no effect on the fetus and pregnant women.

It is most appropriate for pregnant mothers to do four-dimensional color ultrasound when they are 25-28 weeks pregnant, which is about six or seven months pregnant. This is because the fetus's brain is developing rapidly at around 25 weeks. The fetal structure has taken shape at this period, the baby's size and amniotic fluid are moderate, and there is a large space for activities in the uterus. The fetal bone echo is less affected, and the image will be clearer. If you do a four-dimensional color ultrasound too early, the fetus will be too small and some tissues will not be clearly visible, making it impossible to clearly observe the growth of the fetus and screen for deformities.

1. Is it necessary to do 4D color Doppler ultrasound?

Four-dimensional color ultrasound exceeds the limitations of traditional ultrasound. In addition to displaying real-time dynamic images of the fetus in the abdomen, it can also observe the growth and development of the fetus in the uterus from multiple directions and angles, and examine the fetal body surface, such as cleft lip, spina bifida, and maldevelopment of the brain, kidneys, heart, and bones, etc., providing an accurate scientific basis for the early diagnosis of congenital fetal body malformations and congenital heart diseases.

2. Will the 4D color Doppler ultrasound have any effect on the fetus?

Four-dimensional color ultrasound is a very safe examination technology. If used for fetal malformation examination, it will not cause any harm to the fetus. Traditional B-ultrasound is ultrasonic transmission, while four-dimensional color ultrasound does not have ionizing radiation and electromagnetic radiation. It is a sound wave transmission, which does not cause any harm to human tissue. Expectant mothers can undergo the examination with confidence without worrying about whether it will cause radiation damage.

4. What can 4D color Doppler ultrasound detect?

1. Fetal facial deformity: such as cleft lip and palate.

2. Nervous system: anencephaly, hydrocephalus, microcephaly, spina bifida and meningocele.

3. Digestive system: umbilical enterocele, visceral exstrophy, intestinal atresia and megacolon, etc.

4. Urinary system: hydronephrosis, polycystic kidney disease, megacystis, and urethral obstruction.

5. Other deformities: short limbs, conjoined twins, cleft lip, and four-chamber heart.

6. Too much or too little amniotic fluid, etc.

Four-dimensional color ultrasound surpasses traditional three-dimensional color ultrasound. It is achieved through sound wave conduction. It is a safe and efficient method to judge children's physical deformities and infants' growth and development. It is now widely used in medical treatment. Generally, four-dimensional color ultrasound does not cause any harm to the fetus and pregnant women, but you should be careful not to conduct too many examinations.