Amersham Sonographers                    logo.gif (5065 bytes)

Amersham General Hospital, Whielden Street, Amersham, Buckinghamshire, HP7 0JD

07798 830561 or 0709 2226072

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Amersham Sonographers provide a private ultrasound scanning service based at Amersham General Hospital.

Combined Nuchal Translucency Scan & Biochemistry at 11 weeks 3 days to 13 weeks & 6 days. (including early anomaly scan.)

Screening for Chromosomal defects(e.g. Down's syndrome) at 11 weeks 3 days to 13 weeks & 6 days.
This is done by measuring the thickness of fluid space at the back of the baby's neck (Nuchal) & combining it with 2 factors from maternal blood ((free beta HCG & papp A), maternal age & length of the foetus (crown rump length).
These measurements are computed to give a  risk  factor for Down's syndrome. This is given in a figure and helps determine whether your baby is high or low risk. Generally the cut off is 1:300 , but this is very much a personal decision.

About 90% of Down's babies will be picked up with this test. If the risk is high you may decide after discussion with your Midwife & Consultant to have invasive testing (Amniocentesis or CVS). This will give you a definitive answer, to determine whether your baby has a Chromosomal abnormality or not.

In addition to this we can show the following:

We will be happy to give you a photo of your baby.