The 4D ultrasound sheet mainly looks at the fetal head, umbilical cord, heart and placenta to see if there are any developmental abnormalities, and you need to consult a professional doctor for details. If the 4D ultrasound list shows that the outline of the fetal head is intact, it is abnormal if it is defective or deformed, and it is normal if there is no displacement of the midline of the brain and no hydrocephalus. The umbilical cord of the fetus should float in the amniotic fluid under normal conditions. If the image of umbilical cord is seen in the neck of the fetus, it may be umbilical cord around the neck. The 4D ultrasound sheet shows the presence of fetal heart, strong is normal while weak has two possibilities, the fetus is sleeping or possible fetal anomalies. Normal fetal heart is 110-160 beats per minute. The normal thickness of the placenta is between 25-50 millimeters. The report card categorizes placental maturity into four grades based on chorionic villi and placental light spots. Placenta grade III can be used as a reference for fetal maturity. The 4D ultrasound report card also includes amniotic fluid index, femur length and umbilical cord blood flow ratio, etc. Specific detailed views also need to go to the obstetrics department of the hospital to consult a professional doctor for answers.