<unk><unk>  testing using myocardial<unk><unk>  or echocardiography can be employed in patients with known or suspected angina pectoris who are unable to perform adequate exercise tests. These patients often owe their ineligibility status to associated conditions such as: peripheral vascular disease, musculoskeletal disorders, diseases of the lower extremities, severe obesity, or deconditioning.<unk><unk>  testing is achieved with the infusion of either dobutamine in incremental dose, which acts by increasing myocardial oxygen consumption and thereby mimic effect of exercise, or with the use of coronary vasodilators such as adenosine or dipyridamole, which acts by differentiating regions based on<unk> .<unk>  imaging is of great value in the evaluation of patients with low pretest probability of CAD. However, in patients with LBBB,<unk><unk>  is shown to have poor diagnostic accuracy.
Chronic stable angina perfusion scintigraphy with pharmacologic stress
Chronic stable angina positron emission tomography 
Chronic stable angina myocardial perfusion scintigraphy
Chronic stable angina electron beam tomography
Chronic stable angina coronary angiography
Chronic stable angina echocardiography
Chronic stable angina cardiac magnetic resonance imaging
Canadian cardiovascular society classification of angina pectoris