Echocardiography
Echocardiography or Echocardiyogram is an ultrasound to view and hear the heart. Echocardiography is able to view two-dimensional, three-dimensional, and Doppler ultrasound to create images and sounds of the heart.

Image of a Heart using echocardiography
The echocardiography machine's are mainly used in hospitals.
Echocardiography dates back to the 1950s and was invented by Carl Helmuth Hertz and Inge Edler.
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