Cranial ultrasonography is most often used in infants to diagnose problems with the brain
Please get the Ultrasonography done after two weeks of missed period and in second trimester. Your doctor will take care of it. They can be seen in Ultrasonography and you need not worry about it. Think of best and you will get it.
If you miss the periods get the 'Pregnancy test' done and by 6 weeks of last menses get the Ultrasonography done to locate the preganancy and for to see for fetal well being.
Transcranial Doppler ultrasonography is a noninvasive method of analyzing blood flow in the brain.
Sonogram
Ultrasonography is also called sonography, diagnostic sonography, and echocardiography when it is used to image the heart
Carotid Ultrasonography
A Doppler ultrasonography test showing no restricted blood flow is a normal finding.
If pregnancy test is positive, then Ultrasonography done before will conform the location( whether the "baby" is in uterus or extra uterine,like in Fallopian tube.) and live or dead. In next trimester you will know if any fetal abnormalities are present.( Like defects in various organs and if so pregnancy can be terminated.) In third trimester various other parameters like growth of the baby, amniotic fluid quantity and maturity etc can be known and Ultrasonography is totally safe procedure for the baby and mother.At least 3 times Ultrasonography must be done and more if your Doctor advise you.( Expected date of delivery can be told any time.)
Ultrasonography procedures are safe, noninvasive, and painless. No special precautions are necessary.
Doppler ultrasonography uses what is called the Doppler effect to measure the rate and direction of blood flow in the vessels.
with the wave transmitted in tissue