Echo (transthoracic echocardiogram)

An echo (transthoracic echocardiogram), also called a cardiac ultrasound, is a simple test that shows images of the structure, function and size of your heart.

Image showing a clinician performing a transthoracic echocardiogram, using an ultrasound probe and ECG leads to capture live images of a patient’s heart on a monitor in a hospital or clinic setting.

During an echo test, the heart is scanned using an ultrasound wand that is moved across the surface of your chest.

Your doctor may order this test to look at the structure and size of the heart’s chambers and valves and see how they function. This can help diagnose a heart condition or give more information about an existing condition.

Before your appointment

No special preparation is required.

What happens?

The test will be done at a hospital or in a clinic.

You’ll be asked to remove clothing from above the waist, and you’ll be given a gown.

Sticky pads (electrodes) will be placed on your chest to monitor your heart rate and rhythm.

You will be asked to lie on your left side while the scan is done. The clinician will put gel on your chest and move the ultrasound wand over the area.

When it’s finished, the gel will be wiped off your chest and the electrodes removed. You can return to your normal daily activities.

The test usually takes between 30 and 60 minutes. If you’ve had breast reconstruction, the test may take a little longer.

After the test

You won’t get the results on the day. The information will be reviewed and sent to the doctor who ordered the test.

Key things to remember

Infographic explaining transthoracic echocardiogram (echo) appointments, showing icons that indicate the test takes about 30–60 minutes, involves removing clothing from above the waist, and requires no special preparation beforehand.