Mid Trimester Anatomy Scan
Mid-trimester Ultrasound

This scan is usually performed at 19 -20 weeks. A “head to toe” scan of the baby is done, and all major structures are assessed. At this stage, the sex of the fetus can usually be determined if requested.  You will not be told the gender if you advise your sonographer that you wish to avoid knowing. 3D and 4D scans of the fetus will also be performed.

The distance of the lower edge of the placenta to the cervix will also be determined at this stage.  If the placenta is low you will need a follow-up examination in the last 3 months of the pregnancy.

We will also measure your cervix (sometimes via an internal scan) as a shortened cervix has been linked to pre-term labour.

Note:  mid-trimester ultrasound is not a recognized screening test for Down Syndrome (see FAQ‘s).

Coronavirus (COVID-19) Health Alert

As Medical Imaging is considered an essential service, we are opened this week. But as guided by WA Health, all patients and staff are required to wear a mask whilst in the practice. Patients will be scanned alone with no accompanying person; and provided access to multiple images. All gynaecological procedures will be cancelled for now.

Please reschedule your appointment, and DO NOT ENTER our facilities, if you:

Have returned from interstate or overseas travel in the last 14 days; OR
Have been in contact with someone who has returned from interstate or overseas travel; OR
Have been in contact with someone who has a confirmed case of Coronavirus COVID-19; OR
Have a fever, cough, runny nose, sore throat, difficulty breathing, fatigue, or any cold/flu like symptoms.

If you fit this criteria, please self-isolate at home until the 15th day following travel or contact, even if you are feeling well. If you are showing respiratory or flu-like symptoms, telephone your doctor or hospital Emergency Department before presenting yourself. If you are experiencing severe symptoms, call '000' and advise the operator you are in self quarantine because of COVID-19 risk.

Western Ultrasound for Women encourages all to download and activate the SafeWA app to improve contact tracing.

Western Ultrasound is committed to the risk mitigation of Coronavirus COVID-19 as one of our priorities for patient safety and quality of care.

Due to the COVID-19 pandemic there may be changes to regular operating hours. We apologise in advance for any inconvenience arising from measures we're taking for the safety of staff and patients.

COVID-19 Health Information Hotline: 1800 020 080 | Department of Health Health Warnings

Updated 1 February 2021