Echocardiogram factsheet

Introduction

An echocardiogram is a scan that uses sound waves to show how blood flows through the heart and how the heart is working. It is also known as a cardiac ultrasound or 'echo'.

The echocardiogram is used to get information about the structure and function of the heart and check for heart conditions and abnormalities in children.

 Before the procedure

Generally, there is no special preparation before an echocardiogram.

Your child will need to lie very still for the scan so that the results are accurate.

A parent or carer can stay during the scan to help keep their child calm and comfortable.

Young children between three months and two years old may need sedation. Sedation is a medicine that helps you feel calm and relaxed. It can be given as a nasal spray or oral medication.

Speak to your child's doctor before the day of the scan if you think sedation might be needed. Your child may need to follow specific instructions, have a longer appointment time or have a short hospital admission. 

 During the procedure

In the echocardiogram:

  1. gel is put on your child's chest to help sound waves travel from the device, called a transducer, to the heart and back again
  2. your doctor or technician will move the transducer around your child's chest to take images of the heart and blood flow
  3. your child may be asked to move into different positions to get a clear view of all parts of the heart
  4. the images will be processed and appear on a video screen with sound or colour.

The scan should not be painful, but your child may feel pressure from the transducer on their chest.

Some children may also have small electrocardiogram (ECG) electrodes and a special microphone placed on their bodies to get more information from the heart.

 After the procedure

Results from the echocardiogram will be sent back to your child's doctor. You will need to make a follow-up appointment with your child's doctor to discuss the results and any further tests or treatment.

Disclaimer

This factsheet is provided for general information only. It does not constitute health advice and should not be used to diagnose or treat any health condition.

Please consult with your doctor or other health professional to make sure this information is right for you and/or your child.

The Sydney Children’s Hospitals Network does not accept responsibility for inaccuracies or omissions, the interpretation of the information, or for success or appropriateness of any treatment described in the factsheet.

© Sydney Children’s Hospitals Network 2024


This factsheet was produced with support from John Hunter Children's Hospital.