An echocardiogram, or echo, is a test that helps doctors check on your heart health. The test, which is a kind of ultrasound, uses harmless sound waves to create a real-time moving picture of your ...

An echocardiogram is an ultrasound image of the heart. Echocardiograms can help doctors diagnose a range of heart problems, such as heart failure, blood clots in the heart, and heart valve disease.