// Dobutamine stress echocardiography & Transesophageal echocardiography //

A dobutamine stress echocardiography, known as DSE for short, is used when an individual is unable to exercise. It is put in a vein, causing the heart to beat faster, thus mimicking the effects of exercise on the heart. During an echo, a transducer sends out ultrasonic sound waves at a frequency too high to be heard.
A transesophageal echocardiogram is conducted by inserting a probe with a transducer down the esophagus. This provides a clearer image of the heart because the sound waves do not need to pass through skin, muscle or bone tissue.