Most scans are carried out by specially trained staff called sonographers.The procedure is carried out in a dimly lit room so the sonographer is able to get good images of your baby. You will then be asked to lower your skirt or trousers to your hips and raise your top to your chest.It's very exciting to "see" your baby in the womb, often moving his or her hands and legs.
The gestational sac can be seen as early as four and a half weeks of pregnancy and a yolk sac at about five weeks.
A trans-vaginal probe has to be used to visualize the early pregnancy.
The fetal viability scan is important for women who experience bleeding in pregnancy, previous miscarriages or fetal abnormalities in pregnancy.
It is often used to reassure women that their pregnancy is off to a good start.
The disadvantages are cost, decreased sensitivity for major anomalies compared to the 20 week exam, and marked increase in training requirements for providers.
The role of the early anatomic survey, when free DNA screening for chromosomal anomalies is being utilized, remains to be determined.
Talk to your midwife, GP or obstetrician about any concerns you have.
For many women, ultrasound scans are the highlight of pregnancy.
For example: The exclusion value and significance of the ultrasound appearances should be stated where relevant.