Echocardiography
Ultrasound (ultrasonic waves) is used in echocardiography (also called echo for short). These sound waves are sent to the heart with the help of a sensitive instrument in the form of a tube, which is held by the hand and creates the sound that is carried over the patient’s chest. Different tissues reflect sound waves in different ways. Thus, the sound waves returning from the heart are converted into pictures by the computer, and these images are printed on paper as well as viewed on the monitor.