Ecg vs. Echocardiography — What's the Difference?

An electrocardiogram.

An echocardiography, echocardiogram, cardiac echo or simply an echo, is an ultrasound of the heart. It is a type of medical imaging of the heart, using standard ultrasound or Doppler ultrasound.Echocardiography has become routinely used in the diagnosis, management, and follow-up of patients with any suspected or known heart diseases.

An electrocardiograph.

The use of ultrasound to record and produce a two-dimensional real-time display of the size, motion, and structure of various components of the heart.

A graphical recording of the cardiac cycle produced by an electrocardiograph

(medicine) The use of ultrasound to produce images of the heart.

A noninvasive diagnostic procedure that uses ultrasound to study to structure and motions of the heart