What is an echocardiogram?

An echocardiogram (also called an echo) uses sound waves to make an image of your heart. A device called a transducer sends sound waves that echo off your heart and back to the transducer. These echoes are turned into moving pictures of your heart that can be seen on a video screen.

In a transthoracic echocardiogram (TTE), the transducer is moved across your chest or belly. A TTE is the most common type of echocardiogram.

Why is this test done?

This test is done to check your heart health. It’s used for many reasons. For example, it may be done to:

  • Check a heart murmur.
  • Look for the cause of shortness of breath or unexplained chest pain or pressure.
  • Check how well your heart is pumping blood.
  • Check to see how well your heart valves are working.
  • Look for blood clots inside your heart.
  • Measure the size and shape of the heart's chambers.
  • Measure the blood pressure and speed of blood flow through the heart.