Third Trimester Fetal Growth Wellbeing Scan
Third Trimester Ultrasound

Sometimes, an ultrasound scan is indicated in the third trimester of pregnancy. These scans are useful for those women who have had previous complications of pregnancy such as pre-eclampsia, stillbirth etc.  They may require a growth scan because of a medical condition in the mother (eg diabetes or hypertension), or if there is a possible clinical problem related to the pregnancy (eg small for dates).    Quite commonly, the placenta is low-lying at the mid-trimester scan and needs to be checked in the third trimester to ensure that it is clear. At this scan, the fetus’ biometric parameters are measured to plot on growth charts, (i.e. the size of the fetal head, abdomen and thigh bone and calculation of an estimate of fetal weight).  Amniotic fluid, umbilical artery blood flow and the placenta are also assessed.  Colour Doppler pictures of the umbilical cord and fetal brain are obtained.  From the pattern of the blood flow in these vessels it is possible to assess if the placenta is working well and that the fetus receives a normal amount of oxygen.  Generally, the Doppler equipment and scanning methods used on the patient are the same equipment as for a general ultrasound test.  Additional time may be required, however, to perform the Doppler part of the examination.  3D/4D scans will also be performed.

34 weeks’ gestation

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