Echocardiography, echocardiogram, cardiac echo or just an echo, is an ultrasound of the guts. Echocardiography uses standard two-dimensional, three-dimensional, and Doppler ultrasound to make images of the guts. Echocardiography has become routinely utilized in the diagnosis, management, and follow-up of patients with any suspected or known heart diseases. It is one of the foremost widely used diagnostic tests in cardiology. It can provide a wealth of helpful information, including the dimensions and shape of the guts (internal chamber size quantification), pumping capacity, and therefore the location and extent of any tissue damage. An echocardiogram also can give physicians other estimates of heart function, like a calculation of the flow, ejection fraction, and diastolic function (how well the guts relaxes).

Echocardiography is a crucial tool in assessing wall motion abnormality in patients with suspected cardiac disease. It is a tool that helps in reaching an early diagnosis of myocardial infarction showing regional wall motion abnormality of the heart. Also, it is important in treatment and followup in patients with heart failure, by assessing ejection fraction.