A stress test helps determine if chest pain or other symptoms a patient is feeling are related to heart disease. It utilizes an echocardiogram, also known as a stress echo or SE. This ultrasound imaging of the heart is used to assess the heart wall motion in response to physical stress. First, images of the heart are taken "at rest" to acquire a baseline of the patient's heart wall motion at a resting heart rate. The patient then walks on a treadmill or utilizes another exercise modality to increase the heart rate to his or her target heart rate. Finally, images of the heart are taken "at stress" to assess heart wall motion at the peak heart rate. A stress echo assesses wall motion of the heart; it does not, however, image the coronary arteries directly.