![]() Sometimes the baby is pressed up against the placenta and can look pretty odd or you might not get a full look." "Likewise if his or her head has already moved down into your pelvis, you might not see the face at all. "If your baby is facing out towards your belly button, you will see more than if he or she is facing towards your back," says Rachel. ![]() When you book your 4D scan, you’ll understandably be keen to see your baby’s face - but how much you will see will depend on which way your baby is facing. "At this stage, there should be enough fat on your baby that his or her face won’t look too bony and he or she won’t yet have started going down into the pelvis and disappearing from view." What will I be able to see at a 4D scan? “However, to get the most out of a 4D scan, aim to be seen between 26 weeks and 30 weeks pregnant. "It’s your choice whether or not to have one and so you can book whenever you like," she says. When is best to have a 4D scan?Īccording to Rachel, there’s no time you should or shouldn’t have a 4D scan, as they are not considered medically necessary, but are rather classed as "recreational", "reassurance" or "keepsake" scans. The 3D baby scans send waves from lots of different angles to give a still three-dimensional image and the 4D scan is like a 3D scan but gives you a real-time three-dimensional moving image. These sound waves bang into the baby and then bounce back again like an echo and are collected and turned into an image of the baby by a computer."Ī 2D scan (the one used most commonly in hospitals) sends the sound waves straight onto the baby from one angle and the echo can be built into a still two-dimensional image. "Quite simply, the scanning probe sends out high-frequency sound waves which are aimed at the baby. ![]() "Ultrasound scans, whether 2D, 3D or 4D, all work in the same way," says Rachel. ![]()
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