The opening sentence of Wikipedia’s “Echocardiography” entry is “Not to be confused with electrocardiography.”
That’s for sure.
Echocardiography is a cardiac ultrasound that produces 2D or, increasingly, 3D real-time images of a heart. Moreover, an echocardiogram can analyze valve function, blood flow in and out of the heart, “communications” between the left and right sides of the heart, and other cardiac functions.
Electrocardiography, on the other hand, measures the electrical activity of the heart over a period of time.
Both procedures are important in modern-day cardiac care, but echocardiography is increasingly being used in emergency rooms to quickly assess patients experiencing some form of cardiac distress.









