Ultrasound Tests for Coronary Artery Disease
Ultrasound tests are noninvasive tests which use ultrasound, or high frequency sound wave, to create graphic images of the heart and vascular structures, pumping action, and direction of blood flow. Types of ultrasound tests used to diagnosis coronary artery disease include echocardiogram, dobutamine stress echocardiogram and exercise stress echocardiogram.
An echocardiogram (echo) is a graphic outline of the heart’s movement. During an echo test, ultrasound (high-frequency sound waves) from a hand-held wand placed on your chest provides pictures of the heart’s valves and chambers to evaluate the pumping action of the heart.
This test is used to evaluate your heart and valve function when you are unable to exercise on a treadmill or stationary cycle.
The exercise stress echo test involves exercising on a treadmill or stationary cycle while you are closely monitored.