Echocardiogram (Echo): Understanding Heart Ultrasound Tests

Echocardiography, often called an echo or an echo test, is a noninvasive medical test that uses ultrasound to produce images of the heart. It is used to evaluate the pumping ability and structure of the heart and to detect abnormalities in the heart's valves and wall thickness.

During an echocardiography, an ultrasound transducer, which emits sound waves, is placed on the chest. The sound waves bounce off the tissues and structures of the heart and are converted into electrical signals that create the real-time images of the heart. These images can be recorded and reviewed by a doctor, who can then assess the heart's function and anatomy.

Echocardiography can provide information about:

- The size and shape of the heart chambers

- The thickness and function of the heart's walls

- The status of the heart valves, including their movement, opening, and closing

- The presence of any blood clots or tumors in the heart

- The blood flow through the heart and the degree of blood flow restriction

- The direction and speed of blood flow in the heart's chambers

It can also be used to evaluate specific conditions, such as congenital heart defects, heart valve diseases, and myocardial dysfunction. In addition, echocardiography can be used to monitor the effects of medications or devices, such as pacemakers and defibrillators, and to guide certain procedures, such as cardiac catheterization.