In which situations are stress echocardiography useful?

In which situations are stress echocardiography useful?

Stress echocardiography is useful when exercise stress test is not feasible due to mobility issues. Stress echocardiography is usually done with dobutamine infusion to stress the myocardium. An important emerging role is in patients being prepared for liver transplantation. They are too sick for a treadmill exercise ECG. Invasive coronary angiography which is another alternative is not ideal due to the coagulation defect in such patients. Stress echocardiography is also useful when exercise ECG is not interpretable due to left bundle branch block. Another important role for stress echocardiography is when hibernating myocardium is suspected, as myocardial viability assessment.