After 13 weeks gestation, the fetal age may be estimated by the diameter of the head and the length of the femur.
Dating is more accurate when done early in the pregnancy.
An ) provides reassurance in this very early stage of your pregnancy.
A pregnancy can be seen from as early as 6 weeks from the first day of your last period (LMP) and not the date of conception.
The position of BMUS on the use of ultrasound to produce “keepsake” images of the fetus is outlined in the European Committee of Medical Ultrasound Safety (ECMUS) statement, endorsed by BMUS. Ultrasound scans should not be performed solely for producing souvenir images or recordings of a fetus or embryo. The production of souvenir images or recordings for the parents to keep is reasonable if they are produced during a diagnostic scan, provided that this does not require the ultrasound exposure to be greater in time or magnitude (as indicated by the displayed MI and TI) than that necessary to produce the required diagnostic information. Attention is drawn to the recommendation of the EFSUMB Clinical Safety Statement for Diagnostic Ultrasound that ultrasound examinations should be performed only by competent personnel who are trained and updated in ultrasound safety matters.
We at MUMS understand that the first few months of pregnancy can be quite an anxious time for many women with various concerns as to whether the pregnancy is developing normally or that it may result in a miscarriage or even an ectopic pregnancy.
The nuchal translucency is a measurement of an area of fluid behind the baby’s neck.
An increase in the amount of fluid may indicate an increased risk of a chromosomal abnormality, such as Down’s syndrome.
Measurements of the fetus will also be taken to ensure it is growing normally.
At this point, should you wish to know the sex of your baby, you can ask the sonographer to tell you.
This has an accuracy of about 70% and can lead to recommendations for further testing, such as an amniocentesis.
Pregnancy Dating Gestational age is usually determined by the date of the woman's last menstrual period - assuming ovulation occurred on day fourteen of the menstrual cycle.
Souvenir Scanning Developments in real-time 3D and 4D ultrasonic imaging have led to parents asking for souvenir (keepsake) video recordings of the fetus, sometimes at several stages during the pregnancy.