PO Box 137 363
Parnell
Auckland 1151
Ultrasound works just like radar to make pictures of the internal organs or baby, except it uses very weak sound waves. Because they are so weak they can do no damage and that is why they are used to look at babies.
A Doppler study uses ultrasound to measure how fast the blood is moving through your arteries and veins. It can be used to measure how much blood a baby is getting and also to diagnose blood clots, heart problems and blocked or narrowed arteries.