Using sound waves to check your heart

What is an Echocardiogram?

An echocardiogram (echo) is an imaging test that uses harmless sound waves. It shows how well your heart muscle and valves are working. It also shows how your heart muscle and valves are working, and how large your heart is. A transducer (a device that looks like a microphone) is used to bounce sound waves off your heart. A computer changes the sound waves into images that are seen on a monitor. These images help the doctor evaluate your heart. An echo is very safe and painless.

Before your Echocardiogram

When your test is scheduled, be sure to mention what medicines you take. Ask if you should take any of these medications or eat on the day of the test. Make sure to wear a comfortable two-piece outfit. You may need to undress from the waist up and put on a short gown.

During your Echocardiogram

Small pads (electrodes) are placed on your chest to monitor your heart beat. A transducer coated with cool gel is moved firmly over your chest. This device creates sound waves that make images of your heart. At times, you may be asked to exhale and hold your breath for a few seconds. Air in your lungs can affect the images. The images of your heart are recorded on video so your doctor can review them later.

After your Echocardiogram

Ask if you should take any medicine you were told to skip before the test. Most people can eat and return to their normal routine when the test is over.