1) Sonogram 
Typical (still) echocardiogram image, showing left and right atria and left and right ventricles A test that uses sound waves to create a moving picture of the heart. The picture is much more detailed than X-ray image and involves no radiation exposure. An echocardiogram provides your doctor w...
<investigation, radiology> A test which uses high-frequency sound waves to image the heart and surrounding tissues. ... (27 Sep 1997) ... 
(ek″o-kahr´de-o-gram″) the record produced by echocardiography.
Type: Term Pronunciation: ek′ō-kar′dē-ō-gram′ Definitions: 1. The record obtained by echocardiography. See: ultrasonography
A non-invasive medical procedure that uses sound waves to produce pictures of the heart. The monitor will show the structure of the heart in addition to the pumping function. Many premature infants need the procedure done so that the doctor can examine the size of the heart, functionality of the heart and evaluate any heart abnormalities.
This test uses sound waves to create a picture of the heart. The picture is more detailed than an x-ray image. (Read about 'X-rays') This test can be used in the diagnosis of a number of heart conditions including valve disorders, cardiomyopathy and heart attack. (Read about 'Coronary Heart Disease' 'Cardiomyopathy' 'The Heart and Its Valves' 'Hear...
A test of the strength of your heart using sound. It is painless and only takes about half an hour.
an image of the heart that is created by high-frequency (ultrasound) sound waves 
noun a graphical image of the heart produced by an echocardiograph
A form of ultrasound examination that is used to study the heart.
(echo) a procedure that evaluates the structure and function of the heart by using sound waves recorded on an electronic sensor which produce a moving picture of the heart and heart valves.