What is an Echocardiogram?
An Echocardiogram is a test that uses sound waves to create moving pictures of the heart. The picture is much more detailed than x-ray image and involves no radiation exposure. This test is designed to evaluate the valves and chambers of the heart in a noninvasive manner. The echocardiogram allows doctors to evaluate heart murmurs, check the pumping function of the heart, and evaluate patients who have had heart attacks.
How the test is performed:
A trained sonographer performs the test, then your physician interprets
the results. An instrument that transmits high-frequency sound waves
called a transducer is placed on your ribs near the breast bone and
directed toward the heart. The transducer picks up the echoes of the
sound waves and transmits them as electrical impulses. The
echocardiography machine converts these impulses into moving pictures
of the heart.
Echocardiography works well for most patients, allowing doctors
to see the heart beating and to visualize many of the structures of the
heart. Occasionally, because the lungs, ribs, or body tissue may
prevent the sound waves and echoes from providing a clear picture of
heart function, the sonographer may administer a small amount of a
ultrasound contrast agent through an IV to better see the inside of the
heart.
How to prepare for the test:
There is no special preparation for the test.
How the test will feel:
You will be asked to disrobe from the waist up and will lie on an
examination table on your back. Electrodes will be placed onto your
chest to allow for an ECG to be done. A gel will be spread on your
chest and then the transducer will be applied. You will feel a slight
pressure on your chest from the transducer. You may be asked to breathe
in a certain way or to roll over onto your left side.