Is the big row and the fourth dimension the same thing?

4D ultrasound is the most advanced ultrasound equipment in the world at this stage. Its results are real-time dynamic images of your unborn baby. Or real-time dynamic images of other human organs. Big row is abnormal after B ultrasound. To see if the fetus has serious abnormalities, and then to rule out fetal development abnormalities. He is not an active image. Generally, the best time for large abnormalities is 5 to 6 months of pregnancy, that is, 20 to 26 weeks when large abnormalities will be examined.