Why and when 4d scans or pregnancy ultrasound is needed?
1. For Diagnosis and confirmation of early pregnancy or expected pregnancy. Through 4d ultrasound, the health of the baby and the mother is monitored. In the process, the gestational sac can be visualized as early as four and a half weeks of gestation and the yolk sac at about five weeks. Moreover, the embryo can be observed and measured by about five and a half weeks. 2. To confirm the confirm the site of the pregnancy is within the cavity of the uterus. 3. For diagnosis of fetal malformation in the early stage of pregnancy. Many structural abnormalities in the fetus can be reliably diagnosed by an ultrasound scan, and these can usually be made before 20 weeks. 4. To determine the gestational age and assess the fetal size. Through the high frequency waves used in pregnancy ultrasound, fetal measurements can be used to determine the gestational age. 5. To maintain and check the over-all health both of the mother and the baby. 6. To determine the presence of more than one fetus. 7. To k