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Ultrasound

Radiation-free sound-wave imaging for pregnancy, the abdomen, blood vessels and more.

15 guides
Ultrasound illustration
Basics

Ultrasound scans: how they work and what to expect

Ultrasound uses sound waves — not radiation — to make live pictures of the inside of the body. Here's how it works, what it's used for, what a scan is like, and why it's the safest imaging test there is.

6 min
Body parts

Abdominal ultrasound: what it shows and how to prepare

An abdominal ultrasound is a safe, radiation-free look at the liver, gallbladder, kidneys and more — often the first test for abdominal pain or suspected gallstones. Here's what it shows and why you fast beforehand.

5 min
Body parts

Arterial Doppler: checking circulation in your arteries

An arterial Doppler ultrasound checks how well blood is flowing through your arteries — often in the legs, to look for narrowing that affects circulation. Here's what it's for and what to expect.

4 min
Body parts

Carotid (neck) Doppler: checking the arteries to your brain

A carotid Doppler is a vascular ultrasound of the neck arteries that supply the brain — used to check for narrowing that can raise stroke risk. Here's what it's for and what to expect.

4 min
Basics

Doppler ultrasound: what it shows and what your results mean

Doppler ultrasound measures blood flow — for leg clots, narrowed arteries and pregnancy. What the phrases in your report mean, what happens next, and what it costs in Australia.

9 min
Preparing

How to prepare for an ultrasound: it depends on the type

Some ultrasounds need fasting, some need a full bladder, and many need no preparation at all. Here's what's required for each common type so you're not caught out on the day.

5 min
Safety

Is a Doppler ultrasound safe?

A Doppler ultrasound is just a type of ultrasound that measures blood flow — sound waves, not radiation. Here's the short, reassuring answer, including in pregnancy.

3 min
Safety

Is ultrasound safe, including in pregnancy?

Ultrasound uses sound waves, not radiation, and has no known harmful effects — which is why it's the standard scan in pregnancy. Here's the reassuring detail and the sensible limits.

4 min
Scans

Pelvic ultrasound: what it shows & preparation

A pelvic ultrasound checks the organs in the pelvis — the uterus and ovaries, or the bladder and prostate. Here's what it shows, the full-bladder prep, and the two ways it's done.

4 min
What to expect

Transvaginal ultrasound: what to expect

A transvaginal ultrasound uses a slim internal probe to get a close, clear view of the uterus, ovaries and early pregnancy. Here's why it's used, what it's like, and consent and comfort.

4 min
Results

Ultrasound results: how and when you get them

A sonographer performs your ultrasound, but a radiologist interprets it and reports to your doctor. Here's how results work in Australia, why the sonographer often can't tell you much, and how to get a copy.

4 min
Body parts

Vascular ultrasound: checking your arteries and veins

Vascular ultrasound uses sound waves and the Doppler technique to image blood vessels and measure blood flow — with no radiation. Here's what it's used for, from clots to narrowed arteries.

5 min
Body parts

Venous Doppler: checking leg veins for clots

A venous Doppler ultrasound checks the veins — most often the leg veins for a blood clot (DVT). Here's what it's for, why the sonographer presses on your leg, and why it's safe.

4 min
Uses

What is ultrasound used for?

Ultrasound does far more than pregnancy scans. Here's the full range — from the abdomen and thyroid to blood vessels, the heart and guiding procedures — all radiation-free.

5 min
Which scan?

Which scan for gallstones? Ultrasound first

Ultrasound is the main, radiation-free test for gallstones and gallbladder pain. Here's what it shows, when a CT, MRCP or HIDA scan is added, and what to expect.

4 min

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